High Quality Materials The interior of the floating shelf bracket is made of iron, its housing and expansion tube are made of plastic. It is fine workmanship and durable, will not fall off.Stable The supporting rod is a hexagonal column with plastic barbs and shells. Its strength is increased, it is not shaken and it can withstand heavy loads. Solid Load Bracket The maximum weight capacity of the brackets can be up to 176LB / 80KG (2 brackets) when properly mounted with appropriate fixings in undamaged solid brick type walls, or in the studs of hollow hollow walls. Hidden Design Ingenious design creates the illusion that your shelf is floating. This allows for a huge range of designs that you can use in your kitchen, living room, bedroom, bathroom or any room you want!Widely Application Can support and fix various wall shelves, such as bookshelves, display racks, bathroom shelves, etc. Note: The data is all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be some color difference, the actual object received shall prevail.