Adjustable flagpoles: there are 2 sets of riding safety flagpoles, each with 4 glass fiber poles; You can adjust it from 1.5 feet to 6 feet, making it so suitable for low children's bicycles and electric vehicles, one is enough; The maximum height is about 6 feet, and different flagpoles can be adjusted to different heights according to needs Reliable fiberglass pole: the safety flags are strong enough to withstand strong winds, tree branches, advertising boards and other possible impacts, and they are easy to install, and have a connecting tube; Connect all parts together in a few seconds, then use a wrench to easily install it on the rear axle of the bicycle and waterproof flag: the bicycle flag is made of high quality material, with color printing, not easy to tear, waterproof and easy to clean, and reusable enough to withstand strong winds and outdoor conditions Suitable application: high flag provides a safe view for young and old people, and can definitely work on different kinds of bike, bicycle trailers or any other outdoor recreational vehicles, such as submarines and outdoor tents Good visibility color: the orange waterproof safety flag is easy to install on the rear axle of the bicycle for maximum visibility; The double-sided bright orange function makes this sign highly visible to passers-by; To help you pay attention to the safety of your children during the journey, bright color is added in the middle to more eye-catching colour:Orange red Material:PVC+Fiberglass size:183cm after assembly Package Contents: 10 x red long tube 8 x red takeover 2 x black metal clips 2 x pennants Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.