【Upgraded Dog Trolley System】Solve your dog's outdoor needs with ease! Unlike other aerial dog run system on the market that only come with only one tie out cable, our specialized dog runner for yard comes with two lengths of tie out cable 10ft and 15ft for more scenarios, and can be used for two dogs as well! The long line length is adjustable, making it suitable for smaller yards or confined spaces. 【Upgraded Excellent Quality】The heavy duty outdoor overhead trolley system is made of 5mm diameter stainless steel wire that resists chewing and rusting, providing extra strength and durability for large dogs weighing up to 250 pounds. The screw hooks are 15% larger and thicker to ensure secure screwing to a tree or wall and prevent large dogs from pulling. 【Safer Outdoor Experience】Our dog run cable features a shock-absorbing spring to reduce the pulling force and prevent your dog from getting injured. Unlike tie-out stakes, it eliminates obstacles on the ground, giving your pet more outdoor freedom while remaining safely tethered. 【360°Swiveling Locking Hook】Our newly designed zinc alloy clip is rust-resistant and long-lasting to use, which prevents your dog from getting tangled and ensures your dog's safety. The professional swivel locking hook design allows your dog to move freely in the yard, park, or camping while remaining secure and unable to escape. 【Easy to Install & Carry】No tools required-set up in minutes with included instructions! Using the included L-wrench you can quickly install the system by screwing it to trees, patio posts, walls or house frames. With the included storage bag for easy portability, camping, picnicking or other outside activities. Introducing our upgraded dog runner for your yard - the perfect outdoor dog lead for large dogs weighing up to 250lbs! Adjustable long line designed, suitable for both small and large yards. Our heavy-duty dog trolley system comes with a 75ft long lead cable, equipped with 2 tie-out cables measuring 10ft and 15ft, offering ample room for your furry friend to run and play, while the swivel hook and anti-tangle design provide maximum freedom of movement. Whether you're in the backyard, park, or camping, our dog aerial run keeps your pet safe, securely restrained and unable to escape. Our long dog runner cable is constructed from chew-resistant and rust-proof stainless steel wire, ensuring long-lasting durability. The PVC coating protects against abrasion and fading, further adding to its strength and reliability. This dog zip line is straightforward to set up, and typically requires no tools. The trolley system comes with clear instructions for easy setup. With our dog trolley system, take your furry friend along on your outdoor adventures. Make your dog feel free to run, while sustaining safety and comfort with our outside heavy-duty long dog run cable. Don't let pesky tie-out cable leash and limited space hold your dog's energy back - upgrade to our dog runner today!