Ergonomically styled Cutter for use with plastic sheeting and foamed material. For use by right- and lefthanders. The TEFLON®-coated metal base slides readily across any surface for controlled cutting operations. Blade change within seconds. OPTICUT No. 437: with hold-down clip designed to prevent material build-up ahead of the blade edge and to keep fingertips SAFELY away! Push-cut model. OPTICUT No. 436: with reversed hold-down clip. Pull-cut model. OPTICUT No. 435: Same as No. 436, but with additional lateral protector. Replacement blades: 1014310