We had these tea cups at our small Hotel in Hakone, Japan, and hoped to find them on line. These are perfect!!




Kamenoko Ag+ sponges
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Advanced Kitchen Hygiene | Japanese AG+ Silver Ion Antibacterial Sponge Set
Upgrade your daily dishwashing with a premium, long-lasting kitchen sponge that leverages modern Japanese antimicrobial technology. Proudly made in Japan, this high-grade polyurethane sponge is permanently infused with an inorganic AG+ (silver ion) antibacterial agent throughout its structural core. Unlike standard sponges that quickly trap food moisture, develop sour odors, and breed bacteria, the active silver ions continuously work to suppress bacterial growth and neutralize smells, keeping your sponge completely fresh and sanitary. Crafted to balance supreme durability with a scratch-free design, its multi-layered texture effortlessly lifts stubborn food debris and grease from delicate ceramics and glassware while remaining resilient against degradation. Complete with high heat resistance, it offers a sustainable, ultra-hygienic solution for the modern home.
| Product Category | High-Performance Antimicrobial Kitchen Scrub & Wash Sponge |
| In the Box | Pack of 3 Sponges — Multi-pack value for rotating household use |
| Dimensions per Sponge | 11.0 × 7.0 × 3.2 cm (4.3" × 2.8" × 1.3") — Ergonomically sized for a comfortable grip and deep corner cleaning |
| Material Composition | Premium Industrial-Grade Polyurethane Foam, Infused with Silver (Ag+) Inorganic Antibacterial Agent |
| Thermal Tolerance | Heat Resistant up to 120°C (248°F) — Withstands deep boiling-water sanitation treatments |
| Appliance Safety | Dishwasher Safe: YES (Top rack sanitation cycles) | Microwave Safe: NO |
| Country of Origin | MADE IN JAPAN |
- AG+ Silver Ion Technology: Infused directly into the cellular matrix of the foam. Silver ions naturally disrupt microbial activity, preventing foul sour sponge smells and mold buildup over weeks of heavy use.
- Gentle, Zero-Scratch Cleansing: Formulated to wipe away tough grease, baked-on proteins, and residues easily without scratching delicate non-stick pan layers, crystal stemware, fine porcelain, or plastic containers.
- Elite Foam Density & Longevity: Engineered to resist tearing, thinning, and crumbling far longer than conventional grocery store sponges, maintaining an excellent spring back and holding its shape over time.
- Rich Lather & Fast Rinsing: Advanced open-cell polyurethane technology produces thick, luxurious soapy suds from just a drop of liquid soap, while allowing clean water to flush out completely when squeezed.
• Dishwasher & Boil Sanitation: Fully safe to place on the top rack of your dishwasher during normal wash cycles. Thanks to its high 120°C (248°F) heat tolerance, you can also scald the sponge briefly in boiling water to thoroughly sanitize it.
• Drying Recommendations: After dishwashing chores, rinse the sponge clean of excess soap, squeeze tightly, and rest it upright in a draining holder. Efficient airflow complements the silver ions to optimize cleanliness.
• Appliance Boundary: Contains advanced structural materials. Do not place the sponge inside an active microwave oven, near direct stove flames, or inside conventional ovens.
Estimated International Shipping Timeline
The table below outlines the typical delivery timeline for our international shipments. Actual delivery times may vary slightly depending on destination country and customs procedures.
| Shipping Stage | Standard International | Express International |
|---|---|---|
| Order Processing & Dispatch | Within 72 hours | Within 72 hours |
| International Transit | 2 – 4 days | 1 – 3 days |
| Customs Clearance | 1 – 3 days | 0.5 – 2 days |
| Local Carrier Delivery | 2 – 4 days | 1.5 – 2 days |
| Estimated Total Delivery Time | 8 – 14 days | 5 – 9 days |



