Our sliding tray uses better quality wheels. Wide and sturdy, not only is it covered in soft plastic, but it also has silent bearings built in. Even with very heavy appliances, you can slide it effortlessly and smoothly without leaving any scratches on the countertop. Effective weight up to 80 pounds? Yes! This counter slider is made of solid pine wood thick enough. So it is much stronger and more durable than plastic, thin metal and bamboo. That's enough to slide each kitchen appliance out of the cabinet as easily as you pull a drawer out. Is suitable for home appliances with a bottom depth of no more than 12", while is suitable for appliances with a depth of 12"-15.5". Please choose the appropriate size according to the depth of the bottom of your appliance. NOTE: The height of the sliding tray is 1.7", PLEASE MAKE SURE YOUR CABINET IS TALL ENOUGH.