Fix four caps into their own wing groove. 2 Shelf Set four caps and four poles in the under goove of the shelf 3 Pole Insert each of the poles into the under groove of the shelf then turn it clockwise until it is secureiy fastened 4 Shelf Correctly set the shelf in the over groove 5 Wheel Correctly insert four wheels into the under groove of the shelf then turn each of them clockwise until it is fastened Fix the guard rails into the holes on the shelf, (applicable for the product models including guard rails)

Cap Fix four caps into their own wing groove 2 Shelf Set four caps and four poles in the under groove of the shelf Insert each of the poles into the under groove of the shelf then turn it clockwise until it is secureiy fastened Insert each of the poles into the under groove of the shelf then turn it clockwise until it is secureiy fastened Correctly insert four wheels into the under groove of the shelf then turn each of them clockwise until it is fastened Fix the guard rails into the holes on the shelf, (applicable for the product models including guard rails)