Three-Wheel Caster with PU Wheelsfor Shopping Carts

Upgrade your utility gear with this premium three-wheel caster, designed to bring effortless mobility to your daily routines. Whether you are transporting groceries or moving supplies, this designed stair climbing wheel makes navigating obstacles like curbs, steps, and uneven pathways incredibly smooth. The innovative triangular layout rotates effortlessly as it meets an incline, reducing the physical strain of lifting heavy loads up staircases of stairs.Built for durability and long-term reliability, this replacement wheel features a sturdy stainless steel frame that resists wear and tear. The assembly is equipped with three wear-resistant PU crystal wheels that glide quietly across both indoor tile and outdoor pavement without leaving marks. Inside, metal ball bearings and a secure screw-fixed axle mounting design ensure a stable, wobble performance even under heavy loads.This caster assembly is the solution for repairing or upgrading your existing equipment. With a single wheel diameter of 9 cm and an overall assembly diameter of 21 cm, it offers a compact yet highly effective footprint. Please ensure your cart's axle meets the required specifications of 7-8 mm in diameter and a length of 45 mm or longer for a quick and seamless installation.