The system includes 11 types of lanyards, depending on need and use case. The system also includes eight sizes of tool collars and seven different looped heat shrinks for retrofitting existing tools. Proto‚Äôs tether ready tools include 130 different sockets, 80 wrenches, 32 screwdrivers and hex keys, 22 striking and struck tools, and 27 pliers and specialty tools.