[Product Name and Features]: This product is a pair of Diving Screws for Backplate, it features a opposite internal joint design, making it an great accessory for diving backplate fixation. [Usage Instructions]: Please note that metal of screw must face upwards; otherwise, the internal screw may become loose. [Material]: Made from Stainless Steel and Plastic Steel, these Dive Back Plate Screws are reliable, finely crafted, and easy to use. They are designed to long term use without affecting their performance. [Compact Size]: With a diameter of 32mm and height of 36mm, these Backplate Diving Screws have a compact structure that makes them easy to carry or store when not in use. Colour:Black Material:Stainless steel + plastic steel Package Contents: 1 pair x Diving Backplate Screws Only above package content, other products are not included. Note: Light reflection and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.