Qualitative Materials---These half-round cutter are made of high quality steel material, which are solid, long-lasting and wear-resistant Wide Range of Application---These half-round cutters are suitable for end processing of wallet,card case,belt ,watchband ,handbag, etc.hole punching for leather craft 7 Different Sizes ---This half-round cutter set have 7 different styles (15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm) With Semicircle Diameter Specifications Mark---This half-round cutter set with the semicircle diameter specifications mark on the handle end, is convenient to choose you need Easy to Use---This leather punch is quite easy to use, is a good helper for finish a leather craft