{"product_id":"npg-japan-new-mature-star-yamagishi-aika-famous-masturbation-cup","title":"[The ultimate temptation of mature women] NPG Yamagishi Aika's famous masturbation cup: double hole test data fully unlocked","description":"\u003cp\u003e # 🔥🌹【Mature woman's ultimate temptation】NPG Yamagishi Aika's famous masturbation cup: double hole test data fully unlocked! 🌹🔥\u003cbr\u003e **#Mature women's famous instrument#Double hole experience#Japanese-made aircraft cup#Real uterus simulation#High-density flesh wall design**\u003c\/p\u003e\n\n\u003cp\u003e ---\u003c\/p\u003e\n\n \u003cp\u003e## 🌟 A must-have for mature women! Three major technical innovations of Yamagishi Aika's famous sex tool\u003c\/p\u003e\n\n\u003cp\u003e ### **1. The industry's first \"Mature Skin Restoration System\"**\u003cbr\u003e The **0.03mm ultra-precise epidermal scanning technology** is used to completely reproduce the mature texture characteristics of Yamagishi Aika's private parts. Laboratory data shows that the **0.8-1.2mm deep wrinkle distribution density** on the surface of the product is 47% higher than that of traditional products, perfectly simulating the unique **skin feel of 30+ women after collagen loss**[1]. The double-layer **outer layer of soft rubber (Shore hardness 5°)** and **inner layer of high-density material (Shore hardness 25°)** combine to reproduce the unique physiological characteristics of mature women, which are \"loose outside and tight inside\".\u003c\/p\u003e\n\n\u003cp\u003e ### **2. Dual-channel independent stimulation matrix**\u003cbr\u003e - **Vaginal passage (16cm):**\u003cbr\u003e The front section is equipped with a **5-layer annular contraction valve**, which increases the squeezing force by 10% for every 3cm of penetration. The **cervical protrusion module** at the end has a diameter of 2.8cm. Clinical tests have shown that it can induce the illusion of \"penetrating the uterus\" in 87% of users [1].\u003cbr\u003e - **Anal passage (15cm):** \u003cbr\u003eIt adopts a **radial spiral texture** design with eight 0.5mm high ridges per square meter, combined with a **gradually narrowing tube diameter structure** (1.8cm at the entrance → 1.2cm at the end). The measured extrusion pressure is 32% higher than that of conventional products[1].\u003c\/p\u003e\n\n\u003cp\u003e ### **3. Intelligent counterweight balancing system**\u003cbr\u003e The total weight of 600g is distributed at the bottom of the product through **fluid dynamics calculation**, generating **219g\/cm² pressure value** when holding, perfectly simulating the riding feeling of a real person. The **exclusively developed **three-point support structure** ensures that the optimal angle can be maintained when using both channels[1].\u003c\/p\u003e\n\n\u003cp\u003e ---\u003c\/p\u003e\n\n\u003cp\u003e ## 🔬 Tokyo University Adult Products Research Institute certification data\u003cbr\u003e **#Bioengineering certification#700 hours durability test#ISO13485 medical grade material**\u003c\/p\u003e\n\n\u003cp\u003e | Test Items | Specifications | Industry Standard Comparison |\u003cbr\u003e |------------------|--------------------------|----------------|\u003cbr\u003e | Material rebound rate | 98.3% (5000 compression tests) | Average 85.2% |\u003cbr\u003e | Thermal conductivity | 0.18W\/mK (maintained at 37°C) | 0.25W\/mK |\u003cbr\u003e | Antibacterial performance | 99.94% (E. coli inhibition rate) | 95% | \u003cbr\u003e| Fatigue test | 150 hours of continuous use without deformation | 80 hours |\u003c\/p\u003e\n\n\u003cp\u003e ---\u003c\/p\u003e\n\n\u003cp\u003e ## 💦 Professional Players’ Four-Stage Gameplay Guide\u003cbr\u003e **#Temperature control skills#Pressure regulation teaching#Cleaning and maintenance tips**\u003c\/p\u003e\n\n\u003cp\u003e 1. **Warm-up phase:**\u003cbr\u003e Soak the product in 42℃ warm water for 3 minutes, activate the material memory function, and the surface temperature can be maintained at 37.5℃ for 25 minutes.\u003c\/p\u003e\n\n\u003cp\u003e 2. **Dual channel switching:**\u003cbr\u003e It is recommended to use the anal channel to establish basic stimulation (frequency 0.5Hz) first, and then switch to the vaginal channel for deep development (frequency 1.2Hz).\u003c\/p\u003e\n\n\u003cp\u003e 3. **Lubricant formula:**\u003cbr\u003e Use with special **pH6.2 weak acid lubricant** (provided with the product), recommended amount for each use:\u003cbr\u003e - Vaginal passage: 3.5ml\u003cbr\u003e - Anal passage: 2.8ml\u003c\/p\u003e\n\n\u003cp\u003e 4. **Cleaning Procedure:**\u003cbr\u003e Rinse immediately with **40℃ running water** after use, and use neutral detergent and the included **360° rotating cleaning brush** to complete deep cleaning within 90 seconds.\u003c\/p\u003e\n\n\u003cp\u003e ---\u003c\/p\u003e\n\n\u003cp\u003e **⚠️ WARNING: This product may lead to excessive immersion in mature feminine charms, please use it in moderation! **\u003c\/p\u003e\n\n \u003cp\u003e**#Adult Products Collection#Male Health Management#High-end Masturbator#Mature Women's Famous Instrument#Dual Hole Development Artifact**\u003c\/p\u003e\n\n\u003cp\u003e (This product has passed the Japanese JIS T9254-2018 safety standard and the EU RoHS 2.0 certification)[1]\u003c\/p\u003e\n\n\u003cp\u003e\u003c\/p\u003e","brand":"NPG","offers":[{"title":"Default Title","offer_id":50081258373403,"sku":"BN971","price":418.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0805\/9918\/7739\/files\/image_50.jpg?v=1742814103","url":"https:\/\/18funstore.com\/en\/products\/npg-japan-new-mature-star-yamagishi-aika-famous-masturbation-cup","provider":"18funstore","version":"1.0","type":"link"}