Products

ISC 1/2" Mini-Block and 5/8" x 8 ft. falsecrotch lanyard combo.  

This 1/2" pulley from ISC is perfect for small rigging applications. Rated at 50 kN, (11, 240 lbs) is the strongest 1/2" pulley in its class. The b...

The ISC 200 Series Pulleys are redesigned versions of the popular ISC arborist blocks with a new SafeLock mechanism and improved strength. Using st...

The 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 an...

The RP052 from ISC is a 3/4" capacity spring block perfect for the working arborist. Compact design and the unique upper sheave opens and closes an...

This 5/8" pulley from ISC is perfect for medium rigging applications. Rated at 70 kN, (15,737 lbs) it is the strongest 5/8" pulley of its class. Th...

A large steel twistlock carabiner from ISC is perfect for rigging applications. Rated at 50kn (11,250 lbs.)

The RP057A from ISC is a 3/4" capacity spring block perfect for the working arborist. Compact design and the unique upper sheave opens and closes a...

The RP054 from ISC is a 5/8" capacity spring block perfect for the working arborist. Compact design and the unique upper sheave opens and closes an...

The RP051 from ISC is a 5/8" capacity spring block perfect for the working arborist. Compact design and the unique upper sheave opens and closes an...

At approximately half the size of the standard small rigging block and weighing in at only 490g (1 lb.), the new compact rigging block offers a hig...

The NESSIE is a super-lightweight Lanyard Clip which allows climbers convenient & efficient access to, and storage of, rope lanyard during thei...

Stock not expected until August. The REFLEX Mechanical Hitch is a mid-line attachable device!  Designed to offer precise friction control, with a g...

The ISC Rope Wrench is a friction device that allows the climber to ascend, descend and work the tree "Single Rope" with a friction hitch.  The ISC...

Double sewn tether for rope wrench. Rope wrench pictured is not included.

The ISC Single Progress Capture Pulley has a bushed, standard free running wheel. It is compatible with 10 - 13 mm rope and has a working load limi...

Light-weight, high strength aluminum 1/2" micro pulley from ISC with moveable side plates. Rated at 36kn.

The RP 037A micro-pulley from ISC features fixed side plates and is rated at a tensile strength of 6295 lbs.

Oval carabiners usually are usually not capable of achieving high breaking strength due to their design. However, ISC has developed a steel oval ca...

STRYDER™ uses the same unique stainless steel cam as the ISC Hand Ascenders. The coned cam -face allows positive engagement on the rope for a firm ...

This triple action snaphook from ISC needs 3 separate actions to open and therefore is perfectly suitable for use in climbing activities where trip...

This triple action snaphook from ISC needs 3 separate actions to open and therefore is perfectly suitable for use in climbing activities where trip...

The SH905 from ISC is the worlds first triple action swivel eye snaphook. It features a safety heel to reduce snagging and a Blind nose to reduce r...

The Sharpener is 100% Swiss made and makes an excellent impression by its versatility as sharpening tool in the home, the garden and in the worksho...