ONLY-ONE device is designed to assist installation of large format tiles. This device allows for single-operator to collect large format tile. Transport large format tiles, back-butter and lay down to install. Suitable for tile thickness from 3mm up to 20mm (⅛" - ¾"). Four (4) swiveling wheels which can be adjusted to adjust large format tile size. Two (2) ergonomic handles with quick coupling system to the cart and anti-slip rubber pads. Can be used with the Easy-Move full frame, Easy-Move bars and Easy-Move 150.