The CMI RP110 Micro Rescue Pulley features purple anodized aluminum sideplates, 1-1/4" aluminum sheave, bushing, and aluminum axle. 

Specifications:

• Sheave Diameter: 1.25"
• Max Rope Diameter: 1/2"
• Body Material: Anodized Aluminum
• Sheave Mechanics: Oilite Bronze Bushing
• Sheave Material: Aluminum
• MBS: 7,000 lbs
• SWL: 1,400 lbs
• Width: 1.6250"
• Height: 2.75"
• Depth: 0.946" (sideplate to sideplate)