ISC Arborist Block 20mm (3/4") Size:20mm Major axis strength: 23 kN

Major axis strength: 23 kN

Many have tried to copy and reproduce these throw bags

It can also me added to most doubled rope systems and while slower than SRT it will still make life easier by moving the physical effort to the stronger leg muscles giving your upper body a well earned rest

integrated Zip-Absorber-1

ISC Arborist Block 20mm (3/4") Size:20mm Major axis strength: 23 kNISC Alloy Arborist Block 20mm (3 4") The updated RP055 from ISC is a 3 4" capacity spring block perfect for the working arborist. Compact design and the unique upper sheave opens and closes and secures easily. Eliminates the chance of dropping a sheave. The rope friendly rounded side plates are thick aluminum with a blue powder coating to enhance the life of the block. MBS: 150KN WLL: 30KN Pulley wheel colour Green Anchor wheel colour Red Body