This combo combines a heavy duty 3/4" ISC block with an 8' Tenex loopie sling. The loopie sling can be adjusted from 1' to 8'. The block can easily handle ropes up to 3/4" with a MBS of 33,500lbs and WLL of 6,600lbs. This combo works great for full on removals from brushing out the tree all the way to blocking down the big wood! By combining these two pieces in a kit, you are guaranteeing yourself a great price and some great gear!