• The whole sponge is covered with the same material so you can use either side to remove dirt. 
• The net that covers the sponge is made of a film that is attached with metal particles. It is also woven in a loop, so it is hard to break and has a strong scraping power.
• The sponge is thin, so it can be folded and used in a shape that is easy to wash.
• These metal particles are spherical and fairly fine particles, so they can quickly remove dirt without scratching.
• Gold / Silver: The metal particles are aluminum fine particles.
• Copper: The metal particles are copper fine particles, which has a strong antibacterial power.
• Size:   Around W8.8 x L14 x H1.8 cm
• Material:  polyester, nylon yarn urethane foam, aluminum

• Made in Japan

Notes:

1. Do not use bleach or cleanser together.

2. When the surface becomes transparent, the metal particles disappear and the cleaning effect decreases, so please replace it with a new one.