uxcell Plastic Round Cap Chair Table Legs Ribbed Tube Insert 22mm Dia 50 Pcs Product Name : Round Tube Insert;Material : Plastic Color : Black;Size : 22 x 14mm/ 0.87" x 0.6" (D*H) Thread Dia : 21mm/0.83" Weight : 110g Package Content : 50 x Round Tube Inserts