Satin Nickel Sliding Barn Door Hardware Kit Smoothly and Quietly Hanger. SUPERIOR QUALITY: We specialized in sliding door and hardware for many years. Our barn door hardware is made of high quality carbon steel with nickel-plated surface. T is no need to worry about quality. You get what you pay for. DOOR WEIGHT CAPACITY:270 lb, fit door panel width: 36”-40”, door thick 1 3/8″ to 1 3/4″. The track kit comes with 2 kinds of wall fastener, 1 for 16 wall stud, 1 for Concrete Wall. All nylon wheels have been tested beyond 100,000 rolls PACKAGE INCLUDED: 1x 6. 6FT Rail, 5x Rail Spacers, 2x Rollers, 2x Door Stops, 1x Floor Guide, 1x Hex Key; All other necessary hardware is included as you see in the pictures. VERY DETAILED INSTALLATION STEPS:We provide step-by-step graphic and text instruction. All measurements in inch. It is very easy for you to take a reference during the installation. SUPPORT: We are the manufacture of barn door hardware. We have a professional engineer team. We will try our best to serve you. As our valued customer, we will do our best to make sure the product you receive arrives to you on time and as expected.