ABN O-Ring Assortment, 419-Piece Metric Set &ndash; Universal Black Rubber O-Rings for Plumbing, Automotive, General Repair Practical: The ABN Metric O-Ring Assortment holds 419 rubber O-rings to cater to all your plumbing, automotive, and general repair needs Versatile: This set has multiple uses; Prevent leaks in plumbing, machinery, hydraulic, and pneumatic repairs; provide secure seals for any oil, air, gas, and water seal application Durable: Not your basic rubber; the Nitrile Butadiene Rubber (NBR) construction gives these O-rings oil and UV resistance; Super pliable construction and extra thick wall design provides long-term use Easy Storage: Comes in a heavy-duty plastic storage case that keeps each size separated and organized; Portable and can be brought along anywhere you go or stored in a toolbox or storage shelf Contents: This variety pack includes 32 common metric sizes from 3mm to 50mm (20) -3 mm x 1.5 mm (20) - 4.4 mm x 2 mm (18) - 5 mm x 2 mm (33) - 7 mm x 1.5 mm (23) - 10 mm x 1.5 mm (23) - 13 mm x 1.5 mm (14) - 10 mm x 2.5 mm (13) - 11 mm x 2.5 mm (14) - 3 mm x 2.5 mm (13) - 14 mm x 2.5 mm (14) - 16 mm x 2.5 mm (14) - 18 mm x 2.5 mm (13) - 19 mm x 2.5 mm (14) - 21 mm x 2.5 mm (13) - 22 mm x 2.5 mm (10) - 20 mm x 3.5 mm (10) - 22 mm x 3.5 mm (10) - 23.5 mm x 3.5 mm (10) - 25 mm x 3.5 mm (10) - 26.5 mm x 3.5 mm (10) - 28 mm x 3.5 mm (10) - 30 mm x 3.5 mm (10) - 31 mm x 3.5 mm (10) - 33 mm x 3.5 mm (10) - 34.5 mm x 3.5 mm (10) - 36 mm x 3.5 mm (10) - 38 mm x 3.5 mm (10) - 41 mm x 3.5 mm (10) -44 mm x 3.5 mm (10) -47 mm x 3.5 mm (10) - 50 mm x 3.5 mm