This item is provided by Crutchfield.com and includes free phone technical support for the life of the product. Details on how to take advantage of this service will be included with your package. Should you have any issues locating information on how to contact Crutchfield Technical Support, please contact this website's Customer Service department. A great starter cabinet Salamander's Synergy Core Module features an aluminum frame in an open-air design. The cabinet top can support a TV up to 40" and weighing up to 150 lbs. It functions as a simple cabinet all on its own. Or you can add other Salamander Designs accessories , such as wheels, drawers, doors, and more. Inside the cabinet are two adjustable shelves. The supports slide along the aluminum frame, so you can move each shelf to the exact height you want. A removable back panel gives you easy access to your gear for wiring. What's in the Box: 1. Top shelf 2. Bottom shelf 3. 3 Adjustable shelves 4. Rear-panel 5. 4 Posts 6. 4 Bolts 7. 4 Feet 8. 4 Washers 9. 4 Nuts 10. 8 Shelf-pins 11. Wrench 12. Hex-key 13. Assembly Instructions