uxcell Adjustable 3-8mm Thick Rectangle Glass Shelf Bracket Clamps Clip 20pcs Product Name: Glass Clamp; Material: Alloy, Plastic Weight: 110g; Package Content: 20pcs x Glass Clamp Main Color: Silver Tone, White; Fit Glass Thickness: 3-8mm/0.12"-0.3" Dimension: 23 x 12 x 13mm/0.9" x 0.47" x 0.51"(L*W*T) Shaft Dia: 5mm/ 0.2"