If you have ever lost a tiny bolt or bearing while working on your bike you39ll agree that the park mb 1 magnetic parts bowl is a splendid idea the park magnetic parts bowl is a must have bench top accessory that keeps small parts accessible and all in one place 15cm in diameter the parts bowl has an extra strong magnet to stop you loosing vital component parts on the floor under the workbench or in the grass park magnetic parts bowl mb1 features 6in 15cm diameter keep the park mb