This rotating tree base can be used for artificial trees up to 7-1/2' in height. The width of the tree trunk must be 1-1/4". The weight of the tree must be less than 80 lb. Spins approximately 3/4 circle per minute. On/Off switch to control the base has 3 settings: Rotate with tree lights On, no rotation with tree lights On, and Off. The base plugs into the wall and the tree plugs into the base. Indoor use only. UL (Underwriter's Laboratories) approved. Dimensions: 26-1/4" W x 6" H.