From Ferno Washington, the Salesmaker folding instrument carts have been the industry standard for moving equipment by vehicle since 1966. With the Salesmaker folding instrument carts, one person can easily roll heavy, bulky, hard to lift equipment into trucks or other vehicles. Regardless of whether you drive a mini van or sport utility vehicle, DemTruk folding instrument carts can be adapted to fit your vehicle in just seconds. The standard model allows you to haul loads up to 500 pounds. Our most popular unit, the light weight model, allows easy loading and unloading of your vehicle of weights up to 300 pounds. We offer no less than a one year limited warranty on our products.