i needed a customizable mount for my projector as i have two different models from separate companies. This model utilizes the use of 3D printed dowels that are printed according to the width of your desired projector. The brackets themselves can be modified to accommodate for similar head boards with built in shelves so that it can ensure a secure fit regardless of the backboard thickness. The bracket used has been used for about a year and some change and has little to no wobble when shifting around.