This SealerSales SW-18-12 Gravity Skate Wheel Conveyor is a self tracking, gravity skate wheel conveyor that has a loading capacity of 175lbs/ft. It is designed to expand, contract and move easily. This conveyor is engineered to handle multi-sized cartons in low to medium volume applications. It is 18" wide, 3' long (compact), 12' long (expanded), and has an adjustable height from 28" – 44" . The all-steel construction provides unmatched structural integrity, whether the conveyor is extended, compacted or configured in simple or compound curves. Adjustable inner legs vary height to achieve gravity flow. This SealerSales SW-18-12 Gravity Skate Wheel Conveyor is ideal for use in retail store level applications, packaging areas, assembly lines and in low volume shipping and receiving departments.