FEATURES - This Motorized electric Background Drive Set can drive 3 paper/muslin/cloth background rolls. - This equipment fit the pipe which diameter 5-6.5cm - Allows you to easily and quickly select and change any of 3 backgrounds - Remote-controlled electric assembly makes raising and lowering your backgrounds quick and easy. - Supply Voltage: 100~240V/50hz 60hzPACKAGE CONTENT - 2 x 3 fold mounting brackets - 3 x electrical motors - 1 x remote control - 1 x signal receiver - 8 x stainless steel sleeve expansion anchor bolts screwsREMARKS 1.Light stand, Fabric cores or Metal/PVC tubing, battery are NOT included 2.The remote control is powered by three AAA 1.5V batteries (Batteries are not included because of aviation safety policy)