The KingsBox sled is durable and practical.Unlike similar sleds, which can only be used on smooth surfaces, the KingsBox Sled has no limitations. With it, athletes can liven up their workouts in the gym as well as on artificial pavements, synthetic grass, asphalt and concrete.The 6 mm thick skates stabilize and protect the sled and weights, even if loaded with more than 200kg. With the help of this sled, you will strengthen both the muscles in the front as well as the back of your body, thereby improving your fitness.After training the sled is easy to store.