Tempered Glass - Resistant to extreme heat, withstands shock and heavy loads. The screws are not visible, because the fittings are hidden. All things remain in their place; Shampoo, conditioner, and even a shower sponge, because the rack has high tips on all sides. Different wall materials require different types of fasteners. You must use mounting hardware suitable for the walls in your home, sold separately. Tempered glass is easy to clean. Width: 67 cm Depth: 11 cm Thickness: 2.0 cm