The USB plug is usually retractable or fitted with a removable protective cap. Many shoes have removable and replaceable footbeds. They have the original style removable/replaceable cylinder bushing. The parts are sometimes vibrating and may be removable or interchangeable. Most brass instruments are fitted with a removable mouthpiece. Its wingspan of is expandable to with removable wingtips installed. Variations in moveable, removable and transparent roof panels continued. Encrypting data on endpoints and removable storage devices helps to protect against data leaks. This records data on a removable storage medium. The frame is conventional steel tube with the engine supported in a removable cradle. The drawer typically contains a removable till. Windbreakers sometimes include a hood that may be removable and/or stowable. Windows 98 supports write-behind caching for removable disk drives. Covers can either be designed as removable or permanent accessories. Machine functions were directed by inserting dozens of wire jumpers into removable control panels.