Package includes: 20 picture frame protection corners, mirror or picture holding brackets. Material: Made of high quality metal materials, durable, rust proof, modern shape, electroplated surface, feel comfortable. Easy to use: Just a simple screw can be installed, fast and convenient, good working effect. Size :30.3x5.5mm, installation thickness not exceeding 5.5mm. Versatile: Suitable for outdoor and indoor use, perfect for photo or mirror installation., Manufacturer: OTOTEC