Built from Sterling’s RIT 900 cord, the Hollow Block 6.8mm x 13.5in is designed to function as a pre-sewn prusik or climb heist. Made with aramid fiber and sewn with Sterling’s proprietary sewing pattern, this ultra-strong cord is designed to provide excellent griping power on climbing ropes with diameters of 7mm or larger.
 
The 6.8mm HollowBlock2 is the perfect piece of cord to add to your lineman belt as a prusik.
 
Strength: 13kN / 2,900lbs