Material：Transparent Silicone Fuel Pump, Soft, Durable, Lightweight, Easy to Clean. Performance：Perfect Carburetor Rebuild Tools to Convert Your Carburetor to Good Performance. Good Sealing：Good Oil Suction, Standard Rubber. Easy to Install：No tools required, removable and washable. You can easily replace worn bulbs at any time. Suitable：Primer bulbs can be applied to most carburetors, such as gasoline scrapers, lawn mowers, blowers, squeegees, hedge trimmers, string trimmers, chainsaws, hedge trimmers, etc. Product Description Features: Specially designed for garden diaphragm carburetors. The bulb is easy to install and is a great replacement for your old or broken one. Universal replacement bulb for gasoline brush cutters, chainsaws, blowers and hedge trimmers. Specification: Material: Rubber Color: Transparent Size: Small: 1.6 * 1.9 cm Package Contents: 10x Carburetor Primer Bulbs (Small)