419 durable O-rings sorted in a plastic case MSW's range of craft equipment offers 419 O-rings in various sizes. Arranged in the plastic case, so that both handyman and do-it-yourselfer can find the right O-ring at a glance. They are particularly resistant and durable, and are ideal in automotive or mechanical engineering, in the sanitary area and wherever unwanted material transfers need to be reliably prevented. Universal – set of 419 O-rings with diameters of Ø 3.0 - 50.0 mm (inside) and Ø 6.0 - 57.0 mm (cord) Durable – made of nitrile rubber with a high resistance to oils, fats or hydrocarbons Versatile – ideal in automotive or mechanical engineering, in the sanitary sector Professional – for quality, amount and material Practical – well-sorted in a plastic case