... sonic welding parts instead of screws. TPR (Soft rubber) self-clean nozzles with self-clean and anti-limestone function.Plastic hand shower parts ... trial order.Optional package: 1) EPE bag in neutral package, with two-layer corrugated carton. 2) White box, optional customized ... blister and color card, customized design, can be packed together with other parts, such as: wall mount, shower hose, sliding ...