Strong Suction...

High
Safety – This shower handle is made of plastic, 2 suction cups with
strong power, very sturdy and durable.Have a safe experience in the
bathroom, bathtub, shower and toilet handrails. 

Strong Suction – Two
powerful suction cups designs are available on any non-porous and flat
surface including ceramic tile, glass, acrylic and fiberglass. Handrails
provide additional stability when getting in and out of the bath or
shower to give you a comfortable experience.