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. What's in the Box: 1. 4-BLACK 2. PLASTIC CASTERS 3. TOP IS METAL AND IS THREADED TO ACCEPT BOTTOM OF METAL DOWELS OF SALAMANDER SHELVES. ADDS ABOUT 2.25" HEIGHT TO SHELVES

This product can expose you to chemicals including formaldehyde or Di (2-ethylhexyl) phthalate (DEHP) which are known to the State of California to cause cancer, and birth defects and or other reproductive harm. For more informaitno regarding the regulation go to www.P65warnings.ca.gov.