NOT DAMAGE WALL: Bike floor stand doesn't need drilling design, just lift slightly and roll into the groove to store your bicycle vertically or horizontally.Save valuable space and avoid drilling holes or scratches SPACE SAVER: The bike stand lenght is 21.7”, the width is 20.8”, the height is 46.9”(After assembly.NOT for bikes with a wheelbase over 1140 mm ). When storing the bike vertically, it can keep the bikes in a corner and save a lot of space. Great for small spaces such as corners, dormitory, apartment,office, etc. It's suitable for 20" to 27 " bikes with a tire no more than 2.4" in width. HIGH QUALITY: Use heat-treated high-quality steel, excellent powder coating technology, the vertical bike rack surface coating is even, smooth and rust-proof. Whether in dry or wet weather, the stand can be kept as new and build for lifetime use. STURDY & STABLE: There are 4 stable plastic bases on the bottom; the bottom slider of the bike stand can adjust the size of the groove according to the size of the bike tire, lock the bike, and the bottom bracket forms a triangular stable structure with the ground, plus the top hook makes it the most stable and convenient bicycle rack on the market