We made this bike pump durable by using high quality aluminum alloy. The material is super durable and corrosion resistant, yet lightweight so you can easily mount the pump to your bike. The air hose is made of freeze-proof rubber that is flexible for both cold and hot weather because it is always soft when using the pump. No paint stripping and no rusting. Durable Due to the multiple air spikes included, this compact bike pump is suitable for any type of bike. 1" L x 7.87" W