Midwest’s Transfold Choral Risers make it simple for one person to set up for performances without assistance. Simply push the gas-spring cylinder to raise the unit into set-up position; release it to fold the risers down for transportation and storage. An automatic safety lock keeps your risers securely in position. The heavy-gauge steel frame rolls away on casters and supports plywood decks. Available in two sizes. Place Midwest’s TransFold Reverse Choral Riser between two Standard Transfold sections to configure a straight riser set.