-Sleeve for Lad-Saf (TM) fixed ladder safety system -For use on 3/8" (9.5 mm) and 5/16" (8 mm) 1x7 or 7x19 solid core cable -Mobile design follows user for convenient climbing protection -Easy to install and detach anywhere along lifeline -Mechanical and inertial locking system stops falls within inches -Built-in energy absorber and fall indicator with swivel -Anti-inversion feature prevents incorrect installation -Saflok (TM) steel carabiner for secure connection to harness -Extremely rugged and corrosion resistant construction -Extremely compact, lightweight design -Order top and bottom brackets, cable and guides separately -Attachment: Without Lanyard -Rope Diameter: 3/8"/5/8"EachLad-Saf(TM) X2 Detachable Cable Sleeve, 5/8"/3/8" Rope Diameter Each