X-Acto Gripster Black - A fresh approach to precision cutting of lightweight materials, the “Gripster” features a 4" black soft rubberized barrel for comfort and control, quick and easy rear blade release, and anti-roll design. It is supplied with one No. 11 blade and can use a variety of different X-ACTO blades. The No. 11 blade is ideal for precision cutting of lightweight materials like paper, plastic, balsa, thin metal, cloth, film and acetate.