'Sunsun Sponge' x 'Sanrio Characters' First Collaboration Original Package Pre-orders Sold Out Due to Popular Demand! General Sale Starts May 15!

Dainichi Corporation, a manufacturer of kitchen items, will launch the general sale of limited edition 'Sunsun Sponge' featuring popular Sanrio characters on May 15, 2026. Pre-orders from last month sold out quickly. The high-quality polyurethane sponge is known for quick lathering, good drainage, and long-lasting durability of over six months. The collaboration features four character designs: Hello Kitty, Cinnamoroll, My Melody, and Kuromi, packed in a 7mm compressed package.