Helmet Small Full Head 19 20 Hearing Aid Prime Safety Bed Rail Instrument and Solution Stands Prime Safety Bed Rail Replacement Caster 3 x 1 1 4 * All Single Wheel Castes Come With Removable Bolt And Locknut Allowing Disassemlby For Easy Cleaning And Removal Of Build Up Grime Thread Or Anything Else That Your Wheel Picks Up During Normal Usage * This Caster System Will Add Longevity To Your Casters * Swivel: Double Ball Bearing With Hardened Raceways For Extra Strength * Cover: Helps Protect Swivel Bearings * HD Casters Have Threaded Stem For Extra Security And Safety * Construction: Heavy Guage Cold Rolled Steel Formed For Strength * Total Lock Caster Both Swivel And Wheel At The Same Time * Operates With A Simple Tap Of The Toe 19 20 * A soft crown helmet that offers maximum protection to the front back and top of the head * Features black cowhide 1 2 foam rubber and white cowhide lining * Completely washable with mild soap and lukewarm water * Adjustable velcro chin strap *