* Black one-piece headrest PA+25% glass fiber, lumbar can be adjusted up and down
* Nano scale anti pollution Korean Entex net and seat fabric;
* Black PP fixed handrail+gray ABS handrail
* 75 density stereotypical sponge, 14mm thick E1 grade environmental protection ecological seat board, with seat rubber shell
* Three gear locking chassis, Yuechang (Xieqiang) four stage black air pressure rod passed SGS certification
* 340 # black PA nylon five-star pin, 60MM black PU wheel passed SGS certification