The Prowler Sled is a Heavy Duty Sled which allows for pushing and pulling exercises. Plate Storage Stations on the Prowler Sled allows for overload strength training while keeping the sled evenly balanced. There is Multiple Point Attachments for even load during pulling exercises. Perfect for all types of sled dragging or pushing, building lower and upper body strength, endurance, and sports training. Simply add Olympic Plates to the Prowler sled to achieve your desired resistance.