3″ NOA Locking Caster 3″ Twin Caster, Swivel, Locking Safety lock is easy to use with just one step on and one step off Provides immediate immobilization of the bed Prevents bed from moving during transfers Compatible With NOA Elite EX, Elite Riser, AP Riser NOA OEM Part 3/8″ x 1″ Threaded Stem #21-1069 Caster Nut
