I purchased this on Amazon, but I'm selling it because I only used it a few times to test it out. The box and cushioning material have some stains. Please check the attached photos. Please understand that this is a used item. #InstantPurchaseOK The following is an excerpt from the Amazon product description: Brand: Rakuby Compatible Devices: Camera Item Weight: 296 grams Folded Size: 13.7 cm x 13.7 cm x 7 cm UPC: 791296493590 Upgraded electric camera dolly with scale display, adjustable three speeds (2.4 cm/s, 2.6 cm/s, 2.8 cm/s). Support moves in the opposite direction. The wheel angle is 180° adjustable, allowing for creative circle route/straight line movement. An ideal auto dolly for time-lapse/macro/low-angle video shooting. The body is made of high-quality plastic material, supporting a load of 3kg / 6.6lbs, pocket-sized, and lightweight for easy carrying. The wireless remote control changes speed and direction, and can pause, with an effective distance of 6m / 19.7ft. The dolly itself also has control keys. 1/4" to 3/8" convertible screw is suitable for most cameras/smartphone holders. The built-in 1800mAh rechargeable lithium-ion battery can provide up to 6 hours of service time. Includes a USB charging port and charging cable. Four light indicators show charging status (red - green), battery level (blinking), and speed (normally lit).