Minimize flexing and vibration when standing on minute crystals and fingernail flakes with these stout hooks. Ed Leeper made these industry standard hooks forl decades and now our friend Theron has taken over the production - with attention to every minute detail. POINTED AID HOOKS (also known as Logan Hooks - after Jim Logan - the designer) can be used as bat hook in drilled placements or on "dead heads", WIDE HOOKS are stable and strong for edges and micro ledges. Thread a knotted piece of 1/2" tubular web thru the hole from the backside or get us to bartack a colorful, durable and strong or add an Ultratape sling. Hang one of each size AID HOOK on your etriers or aid ladders to allow consectutive hook placements on similar features. wt: 1 oz