1、The product is made of medical grade rubber material, non-toxic, no odor, safe to use. 2、Soft rubber gives you a more comfortable feel. 3、100 pieces, you can discard it after use 4、The choice for denture wearers and those with sensitive teeth. 5、Nice gift for cigarette pipe fans. Feature: The product is made of medical grade rubber material, non-toxic, no odor, safe to use. Soft rubber gives you a more comfortable feel. 100 pieces, you can discard it after use The choice for denture wearers and those with sensitive teeth. Nice gift for cigarette pipe fans. Specification: Material: Rubber(medical grade) Color: Black; White Model: Big; Small Product dimension: Inner diameter(Big): 1.1cm, suitable for 15-17mm width pipe mouth Inner diameter:(Small): 0.9cm, suitable for below 15mm width pipe mouth Optional: #1, black, big #2, black, small #3, white, big #4, white, small Package list: 100 *  Pipe Tips Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.