Derkriy Dog Runner Trolley System, 15.2 m Cable with 3 m Tie-Out for Large Dogs

Derkriy is an outdoor dog runner trolley system for giving large dogs room to move, with a 50FT run cable, a 10FT tie-out cable and support for dogs up to 250lbs.

• Vinyl-covered, rain- and rust-resistant cables — made for outdoor use.
• Adjustable turnbuckle — helps manage cable sag and lets the pulley travel smoothly.
• Shock-absorbing spring — reduces tension from fast movement and sudden stops.
• 360° swivel zinc alloy clips — help limit tangling and loosening during play.
• Reflective coating and a portable Oxford storage bag — support outdoor visibility and transport.

When a dog needs space to move outdoors while remaining attached to a runner system, cable length, movement and secure connections all matter. Derkriy’s trolley set is intended for yards as well as camping, picnics and other outdoor activities. Its components pack into the included storage bag, and the set comes with installation instructions.

What does the shock-absorbing runner do?

A metal spring on the runner cable helps soften tension when a dog moves quickly, reducing the force of sudden stops and jerks. The pulley travels along the main cable, while an adjustable turnbuckle provides a way to address sag and support smoother movement. The cable is presented as chew-proof, and its vinyl covering is rain- and rust-resistant for outdoor activity.

• Designed for outdoor running and play.
• The spring helps reduce abrupt pulling force.
• The turnbuckle adjusts cable tension.

How do the clips help keep the runner connected?

The clips are made from zinc alloy and have a 360° rotating latch. Their swivel movement helps reduce tangling as a dog moves, while the tightening design helps prevent the clips from loosening during running or play. The set is intended for large dogs weighing up to 250lbs, with the connection and movement features designed for active use.

• Rotating clips allow movement in multiple directions.
• Zinc alloy construction is specified for the clips.
• Reflective coating makes the cable easier to see at night.

What comes with the trolley system, and is it portable?

The set includes the runner components, an Oxford storage bag and detailed installation instructions. The components fit into the bag for carrying to a yard, campsite or picnic area. Installation is designed to be completed quickly by one person, making it practical to set up for outdoor activities.

• Includes a 50FT main run cable and a 10FT tie-out cable.
• All system components are packed in the storage bag.
• Installation instructions are included.

Derkriy suits owners of large dogs who want an outdoor trolley system for yard use or trips such as camping and picnics. Its long run cable, shock-absorbing spring, swivel clips and portable storage bag bring movement, connection and transport features together in one set for outdoor use.