Suitable for fabric, quilting, templates, scrapbooking, art & crafts Perfect for sewings enthusiasts, and students involved in sewings, crafting, and DIY project Skidproof grip can be installed in a few second without tool You can easily see ruler marker through them which help with accuracy Ruler grip have a good skidproof effect, help to keep ruler & templates from slipping when use cutters, Manufacturer: NPYQ