740/1200Pcs O-Rings Rubber Gaskets Seal Rings Set Nitrile Rubber High Pressure O-Rings NBR Sealing Elastic Band O Rubber Rings Set

Thickness: 1.5mm; 2.4mm; 3.1mm Color: Black Mater: Nitrile OD: from 6mm to 28mm Total quantity: 740/1200 pieces