Heavy Duty Replacement Wheel Casters for Kennel Cages are designed to fit Modular Kennel Cage Bases and also can be used to make heavy furniture easy to move. Casters offer unmatched maneuverability for large, heavy modular kennel cages etc Wheels lock in place to keep cage banks or furniture stationary, then unlock for easy moving and cleaning Set of four wheels is designed to fit the small cage base Set of six wheels is designed to fit the large cage base Includes mounting hardware Available in sets of 4, 6, 8 and 12 Caster Wheels Additional Details ------------------------------ Product description: Heavy Duty Replacement Wheel Casters for Kennel Cages are designed to fit Modular Kennel Cage Bases and also can be used to make heavy furniture easy to move. Casters offer unmatched maneuverability for large, heavy modular kennel cages etc Wheels lock in place to keep cage banks or furniture stationary, then unlock for easy moving and cleaning Set of four wheels is designed to fit the small cage base Set of six wheels is designed to fit the large cage base Includes mounting hardware Available in sets of 4, 6, 8 and 12 Caster Wheels