This is the lightweight rescue pulley you've been waiting for. The SMC CRx 1" Pulley is incredibly strong, yet weighs a mere 52 grams.

• Easier to carry in your life jacket pocket or swiftwater rescue kit than other, heavier pulleys.
• The pulley works great in Z-drag 3-to-1 extraction systems, rated at an amazing 22kN (2243 kgf) load strength.
• High-strength aluminum sides keep it light while a stainless steel axle resists corrosion.
• Also features a durable and smooth-running Delrin® sheave.
• Handles ropes up to 13 mm (1/2") in diameter.
• This pulley has the required prusik-minding capability for use in 3-to-1 mechanical advantage systems, making it easier to haul or lower heavy loads.
  Material: High Quality Aluminum
• Axle: Stainless steel
• Sheave: 30 mm Delrin
• Dimensions: 69 mm x 44 mm x 27 mm
• Weight: 1.8 oz (52 g)
• Pulley Strength: 22 kN = 2243 kg
• Max Rope Size: 0.5" (13 mm)