Square Cap – Black Plastic

20mm x 20mm (1.2mm – 1.6mm Wall Thickness), 25mm x 25mm (1.0mm – 3.0mm Wall Thickness), 25.4mm x 25.4mm (0.8mm – 1.6mm Wall Thickness), 30mm x 30mm (1.2mm – 2.5mm Wall Thickness), 31.8mm x 31.8mm (1.2mm – 1.6mm Wall Thickness), 35mm x 35mm (1.2mm – 3.0mm Wall Thickness), 40mm x 40mm (1.0mm – 3.0mm Wall Thickness), 50mm x 50mm (1.6mm – 2.0mm Wall Thickness), 50mm x 50mm (2.5mm – 3.0mm Wall Thickness), 65mm x 65mm (2.0mm – 4.5mm Wall Thickness), 75mm x 75mm (2.0mm – 4.5mm Wall Thickness), 89mm x 89mm (2.0mm – 4.5mm Wall Thickness), 100mm x 100mm (1.0mm – 4.0mm Wall Thickness)