Meet the Signature Fitness SF-PS Sisyphus Push Sled: an exercise tool with 8 adjustable levels that helps you take your full body training to the next level. It has two Olympic-sized weight pegs for adding even more resistance. This push sled has 2-position handlebars on each side. It has a steel hook on each side for attaching a chain or carabiner.
This sled has 4 fat tires with deep grooves. The recommended pressure for them is 30psi. The above video shows what this push sled has to offer.