ISC

This plastic thimble has high sides to help it stay in place inside a spliced eye, with open edges to allow removal (tools required) after splicing if needed. Fits rope from 7/16" to 1/2". Not...

Spring replacement kit for ISC rigging pulleys.For ISC Rigging Pulleys: ISC Part # WesSpur Part # RP050 PUL146 RP051 PUL213 RP052 RP053 RP054 PUL217 RP055 PUL303 RP056 PUL212 ...

Replacement spring kit for the ISC RP048 compact rigging block (WesSpur part # PUL153).

It looks like a sea monster and does a great job of managing your tree climbing lanyards - it's Nessie! The Nessie installs on the waist belt of your tree climbing harness with a screw for secure fit...

This ISC aluminum snaphook has a third action catch for increased safety and compliance with climbing comp rules. Ideal for any climbing activities that require three separate actions to open, great...

This lightweight aluminum swivel snap from ISC makes the popular locking snap even more versatile. Triple-action gate fits climbing comp rules that require three separate actions to open. Simple and...

Arborist foot ascender from ISC. The buckle on this ascender is easy to adjust, and quick to release. The ISC STRYDER Foot Ascender has been designed following extensive feedback from industry users,...

ISC Chipmunk FLEX Tether is a semi-rigid tether for the Rope Wrench measuring 9" - a full 3" shorter than the original Squirrel FLEX tether.Chipmunk tether allows users to reduce the overall height...

The Squirrel Rope Wrench Tether designed and manufactured by ISC, makers of the Rope Wrench. Metal frame ensures that twist and flex in the system is minimal. Keeps the Rope Wrench in the optimal...

UltraLink Small pulley can be quickly installed mid-line on ropes thanks to the SafeLock mechanism.Three deliberate actions are required in order to open the SafeLock mechanism, this can easily be...

The ISC small arborist block is a great tree rigging block for professional use. The block is secured with a spring-lock. To open, the user simply pushes the pin in, twists, and the side plates may...

UltraLink Small pulley can be quickly installed mid-line on ropes thanks to the SafeLock mechanism.Three deliberate actions are required in order to open the SafeLock mechanism, this can easily be...