Faithfull FAITRY12 Carpenter's Try Square 300mm (12in) Timber Construction Screws Rigid nylon construction with solid Size:9.5 Rigid nylon construction with solid base and soft grip on steel tubular handle * Remains soft & stable in shape even at extreme temperatures* Lightweight* Mask body is gentle on the skin* Easy to clean and maintain* Low profile design for excellent field of vision* Use with Moldex EASYLOCK filter system that requires no additional clips or holders* All filter combinations possible* Mask body only available in three sizes* 1 unit per box* Tested and certified to EN 140:1998 Brass faced to ensure accuracy and to provide protection against damage Best quality hardwood stocks with blued spring steel blades