Press fasteners with a medium fastening strength offer a good compromise between good holding capacity and ease of use. They are suitable for all medium-weight applications, e.g. on clothing, medium-weight backpacks, bags and tents and much more. The press fasteners from Prym are available in the sizes 12mm and 15mm. The fasteners from the category light fastening strength are suitable for lighter applications. For heavy fabrics you can use the buttons from the category heavy fastening strength. All Prym-fasteners can be easily processed with the enclosed tool and a hammer. It is even easier with the Vario pliers, which are a real recommendation for more frequent use.