Fighting and safe grasping: Our self -sticking silicone coaster can firmly fix your cups to prevent the cup from sliding and dumping.Farewell to overflow and enjoy a worry -free drinking experience. Easy to use: Our round coaster is self -sticking on the back, which can be easily connected to the bottom of the 20 -ounces of direct cups, stainless steel straws or glass water bottles.No need to worry about the carboning loosening. Protective table: The silicone material of the coaster forms a protective layer between the cup and the desktop to prevent scratches and damage.Reliable and coasters to keep your furniture new. High temperature and low temperature: Our silicone coat design can withstand high temperature and low temperature to that they are in place and holding grip.Enjoy hot drinks or cold drinks without worrying about damaging your cup or desktop. Easy to clean and reusable: The non -sticky of the coaster can be rinsed or wiped quickly, and multiple packaging can be used for multiple cups. Name: Sublimation Glass Rubber Bottom Material: Silica gel Color: As Shown Size: 56mm/2.2in Quantity: 20pcs Package Contents: 1 set x rubber bottoms for tumblers 20 oz Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.