This heavy-duty dog tie out runner offers a longer 75ft cable and 15ft lead, giving your large dog up to 250lbs more room to roam safely. The shock-absorbing buffer spring reduces tension, while the durable pulley and tangle-free buckle system ensure smooth operation. With superior rust-proof clips and reflective design, this easy-to-set-up dog trolley system is perfect for outdoor activities like camping, park visits, and yard time.