There velcro straps is a little bit short at first ｣ｬ a father received the goods and complained that the Velcro straps can not hold his bike tube frame｣ｬalthough he can put his 14.9-inch long bike pump into the bag. The tube frame circumference is 4.5 inch originally ｣ｬ it is 7 inches after he added shockproof sponge｣ｬ because he usually take his girl upon the tube frame to riding outside at weekend. We decided to added 2 inches Velcro for the triangle bag｣ｬ which could be tied up to a 9-inch long bike tube frame. (if it is too long｣ｬ you can cut the spare part)

Fit for 16inch｣ｬ17inch ｣ｬ18inch ｣ｬ19 inch and above bike frame

High Quality 900D Fabric Anti-wear

Reflective logo ｣ｬ safety riding at night

Internal net bags｣ｬ classified storage more conveniently

Quick release from velcro

The width is appropriate｣ｬ will not hinder you when cycling

Large capacity｣ｬ suitable for urban rides and long-distance tours