A TWISTARP is a wide flat lifting sling that is available in a variety of sizes and capacities to fit your needs. It was designed by a 35-year veteran Line Foreman who saw a need to reduce the risk of injury and lessen the difficulty of the work that is required to produce a satisfactory, clean job. Twistarp Used correctly, helps eliminate awkward work positions and high repetitive forces. No more working bent over shoveling dirt. Trips up and down ditches and slopes are reduced.