The ProBasics Clamp-On Half Rails fit all woven and spring style hospital beds. These rails welded steel construction with brown vein finish. No gap style. No tools required. The ProBasics Clamp-On Half Rails are compatible with the following Invacare beds: Invacare Manual Bed 5307IVC, Invacare Semi-Electric Bed 5310IVC, Invacare Full Electric Bed 5410IVC, Invacare Value Care Semi-Electric Bed VC5310 and Invacare Value Care Duo Semi-Electric Bed VC5210 (only when used with casters).