Product Review

GM CLIMBING Hardware Kit for 5:1 Mechanical Advantage Pulley / Hauling / Dragging System Block and Tackle

We love mechanical advantages and get benefits from them since long long long ago. They provide extreme simplicity to our life and make it much better.
Mechanical advantage of block and tackle system is about saving labor when dragging or hauling.

Specification of Large Rescue Pulley Double Sheave
Color: Orange
Breaking Strength: 32kN/7100lbs
Material: Sheave - Aluminum
58mm / 2.28 inches
Net weight: 430g/15Oz
Max. diameter of rope: 5/8 inches or 16mm
Ball Bearing
Certification: CE1019 EN12278 / UIAA

Specification of Oval Locking Carabiner
Material: aircraft-grade aluminium alloy (anodized)
Breaking Strength: 25kN - minor axis: 9 kN - open gate: 9 kN
Gate opening (d): 21 mm
Net weight: 80g / 2.82Oz
Length: 110mm - Width:60mm
Certification(s) : CE 1019

Oval, the classic shape for carabiner
Symmetrical shape gives the oval carabiner the characteristics of well equalizing loads. When balance of loading is required during operation, oval aluminum locking carabiner is always the right option for you.

-Keylock nose prevents from rope snagging.
-Large gate opening of 21mm make carabiner easy to clip and unclip.
-Large inner space for capacity of holding more other connectors.


Specificaion of GM CLIMBING 30 ± 8mm Eye-to-Eye Prusik Cord
Length: 30"
Diameter:8mm / 5/16 inch
Meterial: Polyester
Strength: 20kN/4500lb

Assistance in ascending a rope
Process capture in hauling/dragging/tensioning System
Compared to mechanical grab, Prusik cord is much lighter and more compact, taking little space in your rack. It also does almost no damage to host rope and could work in both directions during application.