Features: Made of carbon steel frame and POM roller, solid and durable Black matte finish, modern and stylish POM plastic roller rolls quietly and smoothly Adjustable and wall mounted, fits for door thickness from 13/16" to 2 3/8" (2-6cm) Countersunk holes allow wall screws to sit flush and prevent from scratching your door No grooves needed on the door bottom Easy and quick installation, comes with installation screws Great for sliding barn door use Specification: Type: Floor Guide Stay Roller Material: Carbon Steel Color: black SizeLsAs shown in picture Australia Stock! Package Included: 2x Floor Roller Guide 4x ST4.2x32 Screws 4x Plastic Anchors 2x Hex Wrench 6xAuto Adhesive Felts 1x Manual Notice: Due to the light and screen difference, the item's color may be slightly different from the pictures. Please allow 0.5-2 cm differences due to manual measurement.