LUFFWELL 100ft Heavy-Duty Dog Runner for Yard ? Trolley System with 10ft Tie-Out Cable, Shock-Absorbing Spring Tangle-Free Clip ? Outdoor Dog Zip Line for Large Dogs up to 250 lbs Give your dog the freedom to roam while keeping them safe and secure with the LUFFWELL Dog Trolley System. Designed for strength, durability, and safety, this heavy-duty outdoor dog run is ideal for yards, parks, campgrounds, and more. ? Product Features: Extra-Strong 100ft Dog Runner + 10ft Tie-Out Cable: Made from 100% stainless steel with vinyl coating, both cables are built to resist rust, corrosion, and chewing. Supports large dogs up to 250 lbs. Includes a turnbuckle to maintain proper tension and prevent sagging. Shock Absorbing Spring for Safety: Unlike traditional zip lines, LUFFWELL places the shock-absorbing spring directly on the 10ft tie-out leash to absorb sudden tension and reduce strain, keeping your dog safer while running or changing directions. 360 Tangle-Free Swivel Clip: Equipped with a heavy-duty swivel clip that prevents tangles and provides smooth, unrestricted movement?ideal for energetic dogs who love to explore. Safe, Visible Reliable: The reflective coating enhances visibility in low light, making it easy to spot your dog at night. Keeps your pet safely within sight while freeing up your hands?perfect for camping, yard play, or outdoor lounging. Quick Simple Installation: Comes with everything needed for a fast one-person setup and includes detailed installation instructions. Easy to take down and pack for travel or temporary use. Whether you're camping, spending time in the yard, or enjoying the park, the LUFFWELL Dog Trolley System provides your pet the freedom to roam while ensuring safety and peace of mind. Built tough for strong pullers, this chew-resistant runner is your go-to solution for secure outdoor play. ? What?s Included: 100 ft dog runner cable 10 ft tie-out cable Shock-absorbing spring Turnbuckle screw hook system 360 swivel clip Easy-to-follow setup guide