THE APERTURE IS A COLLABORATION WITH BRIAN NADEAU OF SHARP BY DESIGN.This unique knife has a feature of some of Brian’s most popular custom knives with an “aperture” window in the handle. The overall length andstreamlined width make this the perfect everyday carry size. Finished in machined G10 or Micarta this index finger flipper, with ceramic ball bearings, is a contemporary classic that is quick to open and really comfortable to carry. It is perfect for Everyday Carry.Premium D2 Steel with Rockwell Hardness of 59-60Canvas Micarta or G10Ceramic Ball BearingsDeep Carry ClipHand finishedEXTREMELY Sharp out of the boxBlade Length: 3.14 in | 79.83 mmHandle Length: 3.97 in | 100.86 mmHandle Width: 0.58 in | 14.73 mmOverall Length: 7.21 in | 183.25 mm