Foldable head support aluminium. 

Compatible with most manual wheelchairs and some powered-wheelchairs (push handles with 22mm-tubing), no matter what brand they are. Easy to mount: only need to tighten 4 bolts by attached small wrenches. Unique folding mechanism-system folds with the wheelchair. Attachable fabric cover on head-support, make little hassle when cleaning is necessary. Light weight & stylish design: aluminum alloy frame + high density foam, the entire weight is only about 1 kg(L size).