NewDoar 30 KN CE Certified Large Rescue Pulley Double Sheave with Swing Plate-Blue 2pcs Climbing Gear Self-breaking function allows you to

Self-breaking function allows you to easily stop and hold your position on rope

ascending a rope

and slides downward through the rope to drive the steering wheel to turn through the connecting rod to open and close the shaft

[HIGH ABRASION RESISTANCE]: Double braid core with braided cover

NewDoar 30 KN CE Certified Large Rescue Pulley Double Sheave with Swing Plate-Blue 2pcs Climbing Gear Self-breaking function allows you to[Material] Anodized light alloy Swing side plates and pulleys for easy and rapid rope installation and removal! Net Weight: 1 Ib(480g); Dimensions: 3. 23"(8. 2cm)W * 6"(15cm)L. Thickness: 2. 1"(5. 4cm). Package: 2pcs. Color: Blue. [Double Pulley] 2" aluminum, 2 independent wheels for multiple pulley setups. Side swing side plates are also made of aluminum, with smooth rounded edges and much lighter than steel. CE Certified, reliable choise.