uxcell 30pcs Rubber Closed Blind Blanking Hole Wire Cable Grommets 20mm Country of Manufacture: CHINA; Material: Rubber Net Weight: 52g; Package Content: 30pcs x Rubber Grommet Model: 20mm; Main Color: Black Design: Single Side Total Size: 16x28x5mm/0.63"x1.1"x0.2"(Inner Dia*OD*T)