By The Roll - Visilite Double-Polished Clear Vinyl 0.020 x 54 Inches Clear (30 yards) may be used in the creation of face shields. Clear vinyl will contract and grow with changing temperatures. It is best to allow 1-2% for shrinkage when cutting. Because it is pliable, vinyl material is prone to being scratched. Take care when handling the material. By The Roll - Visilite is phthalate free