From the website: [Basic Size] - Our barn door floor guide has dimensions of 90 x 30 x 60mm. The distance between mounting holes is 32mm, and the diameter of the mounting holes is 5mm. [High-Quality Material] - Our barn door floor guide is made of high-quality carbon steel, known for its strength and wear resistance. The carbon steel material provides a sturdy and long-lasting solution for smoothly and effectively guiding the barn door. It can withstand daily use and maintain its functionality over time. ／ Price negotiation OK! ＼ #43 Strawberry Shop List is here Many other items are also on sale ❤️ Please take a look! * One-of-a-kind, first come, first served * Welcome to bulk purchases! Feel free to comment * Please understand that items are stored at home and will be shipped in simple packaging before purchasing. ╰(*´︶`*)╯♡ * Please check the actual photos for the condition of the product. uxcell Barn Door Floor Guide Set of 2 - Carbon Steel Sliding Barn Door Hardware Adjustable Double Roller Wall Mount Flush Design Bottom Stopper (Black) 40-9-3-086