DBI-SALA Lad-Saf X2 Detachable Cable Sleeve w/ Carabiner* This sleeve for a Lad Saf fixed ladder safety system provides a portable connection point to a ladder safety system, in the event of a fall it locks onto the cable allowing you to regain your footing and continue to climb. * This ladder sleeve is designed for use on 3 8" (9. 5 mm) and 5 16" (8 mm) 1x7 or 7x19 solid core cable. * Once attached, the sleeve does not require any further handling by the climber and allows the user to move up and down the