General description O-Ring Seal Kit includes 540 pieces of rubber washers and gaskets in 18 different sizes. This assortment set features durable and flexible O-rings, ideal for various applications including automotive air conditioning repair, plumbing, and general maintenance tasks. Technical specifications Material: Rubber Quantity: 540 pieces Sizes: 18 popular sizes Color: Green (270 pcs) and Purple (270 pcs) Compatibility and accessories Suitable for garages, plumbers, mechanics, workshops, cars, doors, windows, electrical appliances, bearings, pumps, and carrier rollers. Other information Comes with a handy and resealable plastic case for easy storage and use.