The Dent Fix Equipment Accessory Tray, No. DF-505AT, is designed to attach on top of the MAXI, No. DF-505/220V to complement the storage unit that is built into the tray. The orginal tray is 9.5" by 8" while the Accessory Tray is "5 by 10". An Accessory Tray can be stored on either side of the Maxi. The tray can also be used on the EZ Nitro product.