What distinguishes our Coil Lanyard, Pliers Tether, or Tool Lanyard from the competition then? We chose Quicklinks over traditional carabiners because they have fewer surfaces where sand, grit, and grime might interfere with the carabiner's operation. In contrast to some of the 1mm to 2mm diameter coils, the blue TPU coil is about 4mm and makes every attempt to revert to its previous shape. Each end of the coil lanyard includes an M3.5 stainless steel quicklink. The Tether is an 18mm coil tether made of an inner stainless steel cable covered in blue thermoplastic polyurethane elastomer. All of our Toit 6" Pliers and our Toit Leather Sheath fit in it nicely.