Steck's Disc Smasher, No. 35270, has a nylon base with an 8”-long metal center post and can hold up to 25 5”, 7” or 10” grinding discs. One squeeze of the release lever while grasping the handle will release the internal metal ratchet mechanism. Warped or curled discs can be restored back to proper shape after a week of direct pressure from the Disc Smasher.