uxcell Plastic Round Table Chair Leg Feet Tube Pipe Insert Blanking End Cap 22mm Dia 20pcs Black Color: Black; Total Size: 22 x 19mm/0.87" x 0.75"(D*H) Material: Plastic; Net Weight: 39g Package Content: 20 x Round Tube Insert; Product Name: Round Tube Insert Thread Diameter: 21mm/0.83; Bottom Diameter: 17mm/0.67" Hole Diameter: 14mm/0.55"