Product Material: Aluminum Alloy, Stainless SteelSize: 105*82MmColor: Blue, Red, GoldQuantity: 1PcsPackage Content: 1*High Hollow Heart-Shaped Zipline Pulley 1.Safty Guarantee Ensures Its Security, Zipline Pulley You Can Trust.Adopted Stainless Steel Wheel Shell And Stainless Steel Ball Bearing, This Tandem Double Pulley Is Very Lightweight And Durable, Making It Portable For Your Outdoor Adventure Activities. 2.Strength Mbs: 105*82Mm;Material: Stainless Steel.3.Large Breaking StrengthClimbing Zipline Pulley Is Mounted On Ball Bearing, Features Smooth Rotation Up .This Tandem Pulley Is Sturdy Enough To Support Up ,So It Can Guarantee Your Safety .4.Convenient To Carry Weighs Only:289 G.As A General Pulley For Hauling Or Transporting Equipement,Holes For Easily Clipping Carabiners, Flexible Enough For You To Set Your Preferred Zipline Mode.5.Wide ApplicationThis Climbing Dual Pulley Could Be Used Indoor And Outdoor Activities: In Hauling, Dragging, Tensioning System, In Rescue, Great For Back Yard Zip Line Setting,Swing Seats Mountaineering, Tyrolean, Rescue Applications Tree Climbing, Zipline Sports Etc.