The bicycle valve adapter set includes multiple adapters to fit different valve types, making it a versatile addition to your biking gear. To use, select the correct adapter for your bike's valve, screw it onto the valve, and then attach your air pump. This ensures a secure connection and efficient inflation, whether you're using a hand pump, floor pump, or electric air compressor. Keep this set in your bike repair kit for quick and easy tire maintenance. Features -Color:Multi -Material:Brass, plastic -Size:3.80X0.75X0.75cm/1.49X0.29X0.29in -Size:1.55X1.00X1.00cm/0.61X0.39X0.39in -Size:1.90X1.00X1.00cm/0.75X0.39X0.39in -Size:2.50X0.70X0.70cm/0.98X0.28X0.28in -Size:3.00X1.00X1.00cm/1.18X0.39X0.39in -Size:4.30X1.00X1.00cm/1.69X0.39X0.39in -Size:0.80X0.80X0.10cm/0.31X0.31X0.04in -Size:1.28X0.98X0.98cm/0.50X0.39X0.39in -Size:1.55X0.79X0.79cm/0.61X0.31X0.31in -Size:11.00X0.90X0.90cm/4.32X0.35X0.35in -Ease of use: quickly and effortlessly converts your bicycle valve to fit different adapters, simplifying the tire inflation process. -Versatile design: designed to work with multiple bicycle valve groups, this adapter meets a variety of cycling requirements. - durability: made from great materials, this adapter is resistant to wear and tear, ensuring longterm reliability. -Portable and lightweight: its compact size and light weight make it easy to carry in your bike kit, ready for use whenever needed. -Broad compatibility: ideal for use with mountain bikes, road bikes, and folding bikes, this adapter is a musthave for any cyclist Package list: 1 x set bicycle valve adapter kit (21pcs/set)