Wide Applications: Toilet paper holder fit most paper roll sizes, mainly within 4.4 inches.Large stainless steel knob at the bar end prevents toilet paper roll from falling off. Functional Appearance: Single post and open arm design make it easier to change the toilet paper. Ageless and elegant matte black color creates an luxury feeling to upgrade your home decor Rustproof: The paper holder is made of SUS 304 high quality stainless Steel,anti-corrosion and no rust.mattle black surface resists water spots and fingerprint,Idea for humid environments like kitchen and bathroom. Two Installation Options: One arm style doesn't limited Installation direction,you can choose horizontal(right or left) or vertical installations according to your need.Put the toilet paper holder vertically to save more space. Easy Installation: Simple installation,complete hardware included,you can Install on walls or under cabinet.Hardware is hiding after attaching firmly, provides a neat look to our paper holder, keeps your wall environment clean and nice.