self adhesive black rubber coasters pad for 20oz 30oz skinny tumbler bottom protective sticker round waterproof heat resistant cup pads

the black coaster can be fixed on the bottom of the cup to play a role of slip resistance and protection. suitable for many cups. one of them has 20 coasters. it is made of rubber, and the glue is very sticky, so you don't have to worry about it falling off after being glued. the price shown is only the price of the coaster and does not include the cup. the above is a general introduction of the product. if you are interested in this or have other questions, please feel to consult and we can answer for you. thanks very much.