Professional quality 1000 Bumpers for Cabinet Drawer or Door Bumpers with Self Adhesive Backing just peel and stick. Help Absorb Impact Shock and Sound When Closing Your Cabinets swing or slide doors or drawers. These are made of pure silicone and have a cup on the end to hold air. THESE HAVE A 4 Micro cup at the end. Not a nipple. Diameter (inches) .500" Height (inches) .200" Special soft polyurethane materialquiet closing doors and drawersPressure sensitive self adhesive SHIPPING IS WHAT IT SHOULD BE FREE