The Fast Fit? Rolling Bench 4 ft x 8 ft is a great solution to maximize your grow room space. This unique design allows the tabletop to smoothly roll from side to side, eliminating the need for multiple aisles between each row. This rolling bench system is expandable and can easily be connected end to end to create custom lengths. The rolling bars are made from heavy-duty galvanized steel. The base and tabletop frame are constructed with heavy-duty steel with a long-lasting powder-coated finish for excellent protection from grow room environments. Assembles quickly with minimal tools and hardware. Accommodates the industry?s largest (ID) inside dimension grow trays. Rolls 9 in to each side. Overall outside dimensions of tabletop: 50-1/4 in x 102-1/4 in. Overall height is 27-1/4 in. US Patents 8,714,498, D756,690 and 9,084,478; Chinese Patent 201280018267.2; Patents Pending 29/562,014, US20150320200, AU2012290715, EP2725947 and HK1193554A; and PCT Application WO2013/019268. Trays sold separately. Based on the large size and length of these benches, the MSRP may be higher to account for additional shipping charges.