Although HPaul's original design was already excellent, I further simplified and optimized it. I only designed one base on each side and carved deep grooves on the base. In addition, since I often use foam boards for other project creation, I specially added a sliding buckle structure in the design, so that the base can be easily fitted on a foam board with a thickness of 5 mm. Of course, as long as the thickness reaches 5 mm, any flat surface of any material can be used as a support platform. I chose soft foam sheets as the background, which are light in texture and have almost no

Update 1: I've added a central support with built-in foam board clamps, which can be adjusted to any position between two limit stop blocks. This is particularly suitable for use with large-sized backdrops, providing additional stable support for the image. The curvature of this central support perfectly matches the curvature of the back of the two end limit stop blocks, ensuring precise alignment and seamless integration between all components.

Update 2: I've also launched a set of small background stands designed for A4 paper