Lightly used for one season! Little dust from garage. Compatibility: 4 Wheel Devices, Walkers, Rollators, Small Single Or Double Wheel Strollers, Wheelchairs, Dog Wheelchairs, Stroller Wagons And More! Product Details: Unique Dual Wheel Feature: to accommodate single or double wheeled devices, enabling both wheels to ride on the ski. Fits ALL 4 wheel devices with wheel diameter 4 inch -13inch. Quick and easy to put on and remove, no tools needed. Perfect for use on snow and ice-covered pathways & trails. Designed and made in Alberta, Canada! Ski set includes: 4 x skis, wheel brackets fitted with retractable leash mechanism. Technical Specifications: Ski Size: 18" length x 6" width Accommodates Wheel size: 4" to 13"diameter. Max 2.5" width