Sure Care™ Plus Heavy Absorbent Underwear, Medium, 1 Bag of 25 Ambulatory Accessories Bacterial filtration efficiency: BFE ≥98% Style:1 Pair (Left & Right) Bacterial filtration efficiency: BFE ≥98% 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 Color thread located at rear of underwear waistband helps carer sort sizes quickly Flexible gathers offer snug