This is Made of Eco-friendly Material Silicon. It is High Temperature Resistant, Up to 230 Degrees. Easy to Clean & Can be Washed by Dishwasher. the Deep, Draft-proof Design with Safe-t-slot Cigarette Holders Helps Keep Ashes Inside & Prevents Cigarettes From Falling Out. You No Longer Have to Worry About Ashtrays Falling or Scratching the Floor When Falling From the Table. Our Ashtrays is Good for Home, Office, Hotels, Bars & Ktv Etc Produced by Smoking. 3 1 & 8 Inch L x 3 1 & 8 Inch W x 7 & 8 Inch H