Deisgned for loop pile carpet. Specifically designed for seaming loop pile carpet, It hides the carpet seam by bringing the fibers together to show as little seam as possible. Extra Wide Head: boasting a approx. 5.71 inch wide head with 15 gears, our carpet seam roller extensively reduces dishing in the seam area; Its extra wide head improves the carpet's aesthetic appeal by ensuring evenly spread seams Wide Usages: the grooming carpet pile roller can be applied to hotel carpet installation, home carpet installation, large conference carpet installation, which can increase the aesthetic value of your carpet by ensuring an even spread and eliminating gaps Comfortable to Grip: Ergonomic handle, comfortable grip and labor-savingHeavy duty steel construction, durable to use. Easy to use:Easy back and forward movement. This roller moves back and forward to blend in the carpet seams without altering the position of the carpet backing. 1.Apply special glue to the carpet seam. 2.Splice two carpets together. 3.Use a roller tool to roll and press the joint to ensure it is firmly bonded. This tool is used in this step and needs to be repeated 3 to 4 times in a crosswise direction for optimal results.