Check the listing for details. 1/2" ISC RP048 BLOCK & ROPE LOGIC 1/2 ULTRA SLING. Condition: New. Listed at 274.00 USD. 1/2" ISC RP048 BLOCK & ROPE LOGIC 1/2 ULTRA SLING This 1/2" version of the Rope Logic® Ultra® Sling offers a lightweight and easily adjustable rigging option.Made with super strong 1/2" Samson Tenex-TecTested and designed for use in choking configuration onlyAn 8" eye followed by eleven 5" pockets6' usable length7' total lengthMBS is 10,000 lbs in choked configurationAt approximately half the size of the standard small rigging pulley and weighing in at only 490g (1lb), the new compact rigging pulley offers a highly impressive strength to weight ratio, with an 85kN (19000lbs) MBS and 10:1 WLL of 8.5kN (1,900lbs). The Pulley plates are made from hot forged Aluminium and it is this manufacturing process which allows such a compact pulley to boast such great strength and dynamic load bearing capacity. Lower sheave can hold up to 1/2" diameter rope. Top sheave can hold up to 5/8" diameter sling.