This is a seat locker, a jig that secures the seat when folding a folding wheelchair. Are you having trouble with the seat opening during loading or transportation in a car? Normally, the seat will be slightly open when folded as shown in the fourth image, but this jig can be used to secure it. It is easy to attach and detach. It takes less time than securing with a belt. It also prevents the seat from opening when loading into a car. Applicable wheelchairs have a seat pipe diameter of 19mm or less and a folded width of 70mm or less. The wheelchair in the photo is an OX Engineering GWXⅢ. Dimensions can be changed. Please consult in advance. It is made with a 3D printer. Therefore, there may be layer lines and burrs (snags), but please understand. It will be shipped by Nekopos or Yu-Packet Post. Material: PLA