Chetco Cable Trolley
The Chetco Trolley is solid aluminum, anodized blue with built-in handlebars.  Made to stay on your zip line all year long.  Sure to produce smiles from every rider for years to come. 
Features
Built-in handlebars with rubber grips.
Solid aluminum frame anodized blue to protect from elements.
Breaking Strength is 10,000 lbs.
Attachment point for connecting up to two accessories like a harness or a zip line seat.
Single Ball Bearing, stainless-steel wheels can accommodate any gauge of cable up to 3/8".
Balanced to remain upright.  Trolley wheels are always where they should be, on top of the cable.
Weight limit up to 350 lbs.