AI shopping guide

Search products, read available variants, then prepare a cart when the user asks to buy. The user reviews the cart and completes payment.

Product search & cart instructionsAPI reference & examplesBrand stories & buying guides

Connect a compatible MCP client to https://www.onaholestation.com/api/mcp to search products and read buying guides, or prepare a cart for user confirmation. Some clients need you to add this connection first. MCP discovery.

How an Agent can search and prepare a cart
  1. Search this site's JSON catalog: GET /api/agent/products?q={keyword}&country=ca&locale=en-CA&limit=5

    Replace keyword with a URL-encoded search term (2-100 characters), and use the user's country and an enabled locale.

  2. Follow a result's detail_api_url to read its variants. Select the user's desired variant_id with purchasable=true. If reading a product page, use its Markdown alternate or the JSON detail route /api/agent/products/{handle}?country=ca&locale=en-CA.
  3. Prepare the selected items: POST /api/agent/checkout-sessions. No authentication is required. Send Content-Type: application/json and a unique Idempotency-Key (8-128 characters); reuse the same key and body only when retrying an identical request.
    {"country":"ca","locale":"en-CA","items":[{"variant_id":"variant_REPLACE_WITH_USER_SELECTED_VARIANT","quantity":1}]}

    Replace the variant placeholder and country/locale before sending. Up to 10 distinct variants, quantity 1-5 each. Prices and availability are checked again by the server.

    If the response is checkout_result_unknown, ask the user to verify the outcome before trying again. Do not automatically use a new key. For temporary failures, retry the same key and body.

  4. Return the successful response's checkout_url to the user. The link expires after 48 hours and does not reserve prices or stock. The same authorized browser can continue an adopted cart for up to 7 days from preparation; an unclaimed expired link needs the user to request a new cart. The user opens it, reviews and confirms the cart, then completes checkout. Agents must not submit orders, initialize payment, or send payment credentials. Reading or indexing pages alone should not create carts.
  5. When enabled, the user can separately authorize a saved shipping preference in their account and status access for this checkout on the handoff page. Send only the private preference reference, never a raw address. Status credentials require explicit consent, can be revoked, and only allow read access to this checkout and its order. Keep all credentials private and out of URLs. These permissions do not authorize payment or order submission.
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ABOUT US
  • Our Story
  • Our Team
  • Why Choose Us
CUSTOMER SERVICE
  • Shipping Policy
  • Return & Refund Policy
  • Terms & Conditions
CONTACT US
  • Contact Us
  • Privacy & Security FAQs
  • Returns & After-Sales FAQs
  • Shipping & Logistics FAQs
  • Payment & Checkout FAQs
  • Product Info & Quality FAQs
  • Membership & Promotions FAQs
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  3. TAMATOYS Fallen Nation Karena Tight Spiral Folds High Constriction Onahole

TAMATOYS Fallen Nation Karena Tight Spiral Folds High Constriction Onahole

TAMATOYSAvailability: Out of StockSKU: 4589717876352

Feel the crushing embrace of a fallen sword maiden—tight, aggressive, and irresistibly intense.

CA$34.39
35% OFFCA$52.91
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Quantity
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CA$34.39
35% OFFCA$52.91
Login and purchase to earn 343 points
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Quantity
1

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Details

TAMATOYS Fallen Nation Karena — Tight Spiral Folds, High Constriction

The TAMATOYS Fallen Nation Karena Onahole is a single-layer, closed-end Japanese onahole built for intense, grip-forward stimulation. Designed by TAMATOYS around the Fallen Nation / Fallen Kingdom character series, the Karena packs a 4.3-inch tunnel lined with tight spiral folds that run the full length, creating consistent pressure and suction with every stroke. Made in Japan from soft TPE, weighing 322g — firm enough to hold its shape, soft enough to flex around every movement.

Internal Structure

The tunnel runs 4.3 inches (closed end) and is sculpted with two overlapping texture systems: tight spiral folds that wrap the entire channel, and longitudinal folds layered across them. The combination means there is no neutral zone — stimulation runs from entry to the closed end without gap. The suction from the closed design builds with depth, intensifying as you go further in.

Specifications

Spec Detail
MaterialTPE (thermoplastic elastomer)
Weight322g (0.71 lbs)
Overall Dimensions5.5 × 2.56 × 2.36 inches
Tunnel Length4.3 inches (approx. 109mm)
Tunnel TypeClosed-end (suction design)
Internal TextureTight spiral folds + longitudinal folds
ConstructionSingle layer
SimulationVaginal
Lubricant IncludedYes (sample sachet)
Manufactured InJapan
SeriesFallen Nation / Fallen Kingdom
SKU4589717876352

Care & Maintenance

Rinse the tunnel with warm water after every use. Use a cleaning stick or your finger to reach the inside walls. Shake out excess water and leave to air dry completely — do not use a towel inside the tunnel as fibres can stick to the TPE. Once dry, apply a light coating of renewal powder (or plain corn starch) to keep the surface from becoming tacky. Store in the original packaging or a clean bag away from direct sunlight.

Use water-based lubricant only. Silicone and oil-based lubricants degrade TPE.

Who This Is For

The Karena is built for users who want continuous pressure rather than varied texture. The spiral folds apply grip across the entire tunnel length — there is no wide middle section or smooth zone to break the stimulation. If you prefer tight, suction-heavy onaholes over loosely textured designs, the Karena is a direct match. The 322g weight gives it enough mass to stay in position without being awkward to hold.

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  • TAMATOYS THE HOLE Dark Elf Girl — layered ridge texture with tight channel and high pressure
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Onahole Station ships the TAMATOYS Fallen Nation Karena from Canada with discreet packaging. Free shipping on orders over $89 CAD.

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TAMATOYS Fallen Nation Karena Tight Spiral Folds High Constriction Onahole

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CA$52.91

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Product FAQs

The Karena features deeply sculpted tight spiral folds combined with intricate longitudinal folds, creating high constriction and a multifaceted gripping sensation throughout the tunnel.