Check the listing for details. Plastic Black Blanking End Cap Caps Tube Pipe Inserts Plug Bung Steel Tubing Leg. Condition: New. Listed at 0.99 USD. Note: For proper size. measure the outer dimension (OD) of the tube. For example: For a 1" OD round tube, select a 1" plug. Untitled 8 Metric Size English Size 10mmx10mm 3/8"x3/8" 13mmx13mm 1/2"x1/2" 15mmx15mm 9/16"x9/16" 16mmx16mm 5/8"x5/8" 18mmx18mm 11/16"x11/16" 19mmx19mm 3/4"x3/4" 20mmx20mm 13/16"x13/16" 22mmx22mm 7/8"x7/8" 23mmx23mm 15/16"x15/16" 25mmx25mm 1"x1" 28mmx28mm 1 1/16"x1 1/16" 30mmx30mm 1 1/8"x1 1/8" 32mmx32mm 1 1/4"x1 1/4" 35mmx35mm 1 3/8"x1 3/8" 38mmx38mm 1 1/2"x1 1/2" 40mmx40mm 1 5/8"x1 5/8" 45mmx45mm 1 3/4"x1 3/4" 50mmx50mm 2"x2" 60mmx60mm 2 1/4"x2 1/4" 70mmx70mm 2 3/4"x2 3/4" 75mmx75mm 3"x3" 80mmx80mm 3 1/6"x3 1/6" 90mmx90mm 3 1/2"x3 1/2" 100mmx100mm 4"x4"Note: For proper size. measure the outer dimension (OD) of the tube. For example: For a 1" OD round tube, select a 1" plug. Untitled 8 Metric Size English Size 10mmx10mm 3/8"x3/8" 13mmx13mm 1/2"x1/2" 15mmx15mm 9/16"x9/16" 16mmx16mm 5/8"x5/8" 18mmx18mm 11/16"x11/16" 19mmx19mm 3/4"x3/4" 20mmx20mm 13/16"x13/16" 22mmx22mm 7/8"x7/8" 23mmx23mm 15/16"x15/16" 25mmx25mm 1"x1" 28mmx28mm 1 1/16"x1 1/16" 30mmx30mm 1 1/8"x1 1/8" 32mmx32mm 1 1/4"x1 1/4" 35mmx35mm 1 3/8"x1 3/8" 38mmx38mm 1 1/2"x1 1/2" 40mmx40mm 1 5/8"x1 5/8" 45mmx45mm 1 3/4"x1 3/4" 50mmx50mm 2"x2" 60mmx60mm 2 1/4"x2 1/4" 70mmx70mm 2 3/4"x2 3/4" 75mmx75mm 3"x3" 80mmx80mm 3 1/6"x3 1/6" 90mmx90mm 3 1/2"x3 1/2" 100mmx100mm 4"x4"