Manual Clamps is an unlimited clamp configuration with standard components, which reduces product lead-time. This clamp is made of steel. The length of each clamp is 63/4″. Each clamp weighs 6.8 lbs. This clamp has a maximum opening of 1/4″. The anvils are 1″ x 1″, 2″ x 2″ and 2″ x 3″ interchangeable, plus a 2″ x 3″ stationary plain 3/4″. This is used for sheet or strip materials with relatively low elongation, such as paper, textiles, leather and metals. This clamp is also works with thin materials with high elongation.