An essential for a trade rack these stoppers are perfect for putting into rock flares and seams. The colour coded stoppers to allow for quick identification on your harness, and their rounded edges make for quick, convenient removals from the snap gate. Each stopper is made with a durable aluminium head and a strong galvanised steel cable.Durable aluminum heads and steel cablesTransverse taper is versatile in flares, constrictions and parallel cracksRounded edges for easy cleaning (smaller sizes are straight for better surface contact)size 1 4.3/9.1 mmsize 2 4.8/9.9 mmsize 3 6.1/11.4 mmsize 4 6.9/12.4 mmsize 5 8.4/13.5 mmsize 6 10.2/15.5 mmsize 7 11.7/16.3 mmsize 8 13.5/18.3 mmsize 9 15.2/20.8 mmsize 10 17.3/23.4 mmsize 11 20.1/26.7 mmsize 12 22.9/30.5 mmsize 13 26.4/35.1 mmsize 1-2 - 2kNsize 3 - 5kN size 4-5 - 6kN size 6-12 - 10kNTotal Weight - 456g