This product has good fixability and powerful heavy load capacity. Don't smash it by hand when you get hold of the goods. It is hard to break, it will likely be smooth to fold after installation. Kindly note: 1. Description : 1) Material: iron 2) Color: color zinc plated 2.Transition: 1 cm = 10 mm = 0.39 inches 3.About colour : Depending at the mild and the screen, the colour of the object may be slightly various from the colour of the picture. 4. About the scale :Allow 0.5-2cm difference thanks to manual dimension