uxcell Square Table Chair Leg Tube Pipe Feet Insert Cap 16mmx16mm 20pcs Black Color: Black; Total Size: 16 x 16 x 19mm/0.63" x 0.63" x 0.75"(L*W*H) Material: Plastic; Net Weight: 31g Package Content: 20 x Square Tube Insert; Product Name: Square Tube Insert Hole Size: 8 x 8mm/0.3" x 0.3"(L*W); Thread Size: 15 x 15mm/0.6" x 0.6"(L*W) Bottom Size: 10 x 10mm/0.4" x 0.4"(L*W)