If you or someone you care about uses a walker and lives somewhere with real winter, you need this accessory. The Off-Road Walker Kit replaces the little wheels on the walker with knobby 4 inch rubber wheels to allow for better traction on slick and uneven surfaces. The skis go on the back legs to prevent dragging and catching, increasing stability and safety for the user. This is a new kit, but the packaging was wrecked, so it’s out of the bag it came in. Please ask questions.