These rails are made from high grade stainless steel that will not rust even in wet areas! They have a mirror polished finish, which is comparable to chrome. The unique angle on the design gives the rail a slimmer and more stylish look and not just the standard right angle. The rail diameter is 32mm, which is a good size for a secure and confortable grip. Due to the material the rails is suitable for indoor and outdoor use and will not corrode, fade or rust so you can use it anywhere. The fixings are concealed under the twist lock cover. Screws and fixing are not included. These rails are available in 3 sizes: 305mm (12 inches), 457mm (18 inches) and 610mm (24 inches).