The XIKAR® Xi series of cutters are world renowned. So when they proudly introduce a cutter without the iconic 'teardrop' shape, you can rest assured the Ultra Slim has passed the same strict tests for sharpness, quality & style. A 64 ring gauge and as thin as a few credit cards, (only 3.5mm thin!) the Ultra will fit any occasion. As useful as any Xi cutter, you'll never forget it as it rests comfortably in your pocket or wallet.