Background Frame is one of the accessories of the LBVUER 360 degree rotating camera slider.it is Highly recommended to buy with the camera slider. Often used in product photography. | It consists of a 39.4inch × 19.7inch rectangular bracket, you can hang the shooting auxiliary equipment which like background paper, light-absorbing cloth etc. | Note: The use of the background frame does not require counterweights (put the dumbbell piece), the background frame has played a stabilizing role. | Recommended for use when shooting products, you can change the background prop of any color and pattern when you shoot .Not affected by clutter environment.