The Oakbrook Shower Mount features durable plastic construction. The shower mount is universal to fit most handheld shower assemblies (not included). There are multiple mounting options, which include suction, self-stick and screws. The suction cup and adhesive mounting will work best on smooth, flat surface. Fits a conical nut of 21.1 mm. Puts your handheld shower within reach Creates a personalized showering experience Use suction cup on smooth, flat surfaces for best results