I'm selling this because I no longer need it! The rubber is in good condition with no deterioration. It's the lowest price on Amazon, Yahoo Auctions, and other flea market apps. I don't smoke, and I don't have any pets. ◆ Board-type vibration isolation item to be set under various pedals to create a vibration-proof effect ◆ Reduces noise to the floor below by approximately 75% (※), realizing quieter V-Drums performance (※Based on manufacturer's measurement results) ◆ The unique shape of the hemispherical vibration-absorbing rubber absorbs vibrations during pedal action ◆ Low-profile, compact design allows for easy setup without hindering playability