2piece stair climbing wheel set designed for moving carts, laundry carts, and ladders. Each unit uses a triangular threewheel cluster that rotates to climb steps smoothly. Includes galvanized axle and durable plastic wheels for long service life. Key benefits Easier stair climbing: Threewheel triangular clusters roll step by step to reduce effort when moving loads up or down stairs. Simple replacement: Sold as a 2piece set to refresh worn wheel clusters or convert a hand truck or cart for stair use. Durable axle: Galvanized axle resists bending and provides reliable alignment for the wheel clusters. Lightweight and resilient wheels: Plastic construction keeps weight low while offering consistent rolling performance on concrete, wood, and tile steps. Improved control: Rotating cluster design keeps the load stable and minimizes jolts when traversing individual steps. What it does and how it helps Converts standard moving carts or laundry carts into staircapable units so you can move loads without carrying them. Replaces damaged or worn wheel clusters to restore smooth rolling and maintain safe handling. Reduces physical strain by allowing the cart to roll over stair risers rather than being lifted. Compatibility and fit Intended for use with moving carts, stairclimbing hand trucks, laundry carts, and ladder dollies that accept a clustered wheel assembly and a separate axle. Supplied as two matching wheel clusters plus a galvanized axle to existing assemblies or outfit a compatible cart. Material and performance Wheel material: plastic for low weight and steady rolling. Axle material: galvanized steel for strength and corrosion resistance in everyday indoor and outdoor use. Cluster design: triangular threewheel arrangement to rotate over stair steps in sequence. Typical use scenarios Apartment laundry day: Roll a laundry cart up and down stairways without carrying heavy loads. Delivery and small moves: Move boxes and packaged goods across steps during last mile delivery or while relocating within multi level buildings. Home improvement and gardening: Transport small appliances, planters, or supplies up basement stairs or porch steps. Installation and maintenance Designed for straightforward installation on compatible carts and ladders that accept clustered wheels and an axle. Regularly inspect wheels and axle for wear and debris. Clean and parts as needed to maintain smooth performance. Package contents Two triangular wheel clusters and one galvanized axle for installation on compatible carts and ladders. This wheel set offers a practical upgrade or replacement for stairclimbing carts, improving ease of use and maintaining dependable rolling performance across steps and landings.