The cylindrical sponge made of premium and sponge material is safe and practical, comfortable to the touch, and can help you complete DIY work and make and practical cups. The concise design and craftsmanship will make the product convenient and practical. Features -Color:Black -Material:Sponge -Size:12.00X9.00X9.00cm/4.72X3.54X3.54in(center size:1.9cm/0.74in) -Size:12.00X8.00X8.00cm/4.72X3.14X3.14in(center size:1.9cm/0.74in; 1.2cm/0.47in) -Size:11.00X7.50X7.50cm/4.32X2.95X2.95in(center size:1.9cm/0.74in) -These cup turner rotary sponges are much steadier, durable and stable, reusable and easy to clean. -The excellent production technology makes it possible to lower noise during operation, giving you a better DIY environment. -With a smooth surface, it will not scratch your cups. It can remain their shape with long time use. -With these cylinder sponges, you can enjoy the fun of DIY at home and pass the time well. -Make sure to size the rim of the cup and use foam that is a little bigger than the cup, not a little smaller. Package list: 8 x Sponges