Features – Direct fit to your standard aluminum frame box hand trucks and direct fit to your appliance hand truck. Turning your standard box or appliance hand truck into a stair walker
This retrofit attachment is universal to the standard box dolly. This retrofit can replace your wheel setup on your preexisting box dolly within a few minutes. If you are looking to only upgrade your dolly this is the perfect way. If looking to retrofit your fleet, this is the way to go.