This is a terrible shower system. After 6 months of use two pieces fell off from both ends of the slide bar. 3 months later the handle that regulates the water fell off too. We are lucky it did not crack floor tiles. Too many plastic pieces and head is leaking. After 9 months of use, it looks cheap and like it’s been used for years. 
This system was professionally installed and the shower is used with care. This should not be happening.