Able Life Locking Swivel Front Wheel Kit, 6-inch Replacement Rolling Walker Wheels for the Able Life Space Saver Walker, Stander EZ Fold-N-Go Walker, and Signature Life Elite Travel Walker, Set of 2Brand: Able Life Comfortably Independent Color: Black Features: Locking swivel wheel kit; 6 inch walker wheels roll smoothly across any surface Lock the wheels to keep them straight or unlock the wheels to allow them to swivel Comes in a set of 2 replacement wheels Easy installation with the included wrench kit; wheel axle diameter measures 5 16 of an inch or 8 millimeters Compatible with the Able Life Space Saver Walker, the Stander EZ Fold N Go