Features: Rotary locking mechanism: Simple rotary locking system, just stretch to the right length, turn clockwise and tighten or reverse to the shortest length for easy storage when not in use. High quality 6061 aluminum alloy, strong and durable. The post with non-slip feet reduces slippage when used directly to support a tent, tarpaulin or other shelter. There is a rain cover at the top, which is corrosion resistant. - Inner mesh panties Material: aluminium Color: black Outer diameter 3 sections of aluminium pipe: 1-29 mm, 2-25,5 mm, 3-22,2 mm List of things to pack Storage bag*1 Function: 【High quality material】 Aluminum tarpaulin posts have better stability. The pole is made of aluminum alloy, strong and durable. They are lightweight and rust-resistant. 【Wide application】 Spare tent masts are the best choice for lovers of survival in the wilderness, jungle exploration and outdoor camping. They are professionally used for large tarpaulins, camping, backpacking and hiking. 【Portable use】 Replaceable tent masts are foldable, compact and easy to store when not in use. It can be taken anywhere and quickly unfold a tarpaulin or tent. 【Easy to use】 Aluminum tent masts are easy to operate. Stretch to the right length, turn clockwise, pull tight and tie the rope diagonally.