3M DBI-SALA Lad-Saf 6116507 Vertical Sleeve, W/Carabiner, Shock Absorber, Global Compliance, Fits 3/8" or 5/16" DIA,1X7 Or 7X19 Solid Core Cable, Silver/Navy Sleeve for Lad-Safe fixed ladder safety system Global compliance with integrated energy absorber For use on 3/8-inch (9.5 mm) and 5/16-inch (8 mm) 1x7 or 7x19 solid core cable Automatically follows user for hands-free climbing and fall protection