Plastic flat square cap to fit 20x20mm tube
Measurements: 20x20x12mm
Plastic flat square cap to fit 100x100mm tube
Measurements: 100x100x12mm
Plastic flat square cap to fit 25x25mm tube
Measurements: 25x25x12mm
Plastic flat square cap to fit 30x30mm tube
Measurements: 30x30x12mm
Plastic flat square cap to fit 40x40mm tube
Measurements: 40x40x12mm
Plastic flat square cap to fit 50x50mm tube
Measurements: 50x50x12mm
Plastic flat square cap to fit 90x90mm tube
Measurements: 90x90x12mm