Description:1. Material: Zinc alloy construction, bright surface treatment, corrosion-resistant, rustless.2. Application: Widely used in fixed glass or wood shelf, such as bathroom glass shelves, wine cabinets, display cabinets, etc. More suitable for use in a dry indoor environment.3. NOTE: The locking screw on the glass clip maybe a slotted screw or cross groove screw. According to the thickness of your shelf, select the clip with the corresponding range.Specification:Suitable for: 3-8mm thick.Material: Zinc Alloy.Mounting Hole Dia: 4mm / 0.16".Dimension: 33 x 16 x 14mm / 1. 3 x 0.63 x 0.55"(L*W*H)Color: Bright ChromeStyle: Half Round.Package Content:2 x Glass Shelf Brackets ,4 x Screws, 4 x Expansion Tubes