The Afghan knife or churra, also called the Khyber knife, although used mainly by the Afghans, has had a wide distribution in India from Mughal times. Indian Museums and Armouries have this weapon in large numbers. The blade can measure anything from 30 centimetres to 70 centimetres and the longer Afghan churra can really not be included in the category of a dagger. The weapon is single edged and its characteristic feature is a perfectly straight back blade. The back edge is thick and reinforced to form a T-shaped cross section. The front edge of the blade tapers gradually from the hilt to the point. The hilt is formed by two hafts of wood, horn or bone, rarely ivory. The lower part of the hilt generally carries an ornamented metal mount. The sheath is wooden, covered with leather or velvet and is reinforced with a metal mount at the tip.