30 Hour OSHA Trained yellow/black 2" high, Hard Hat, hardhat, Lunch box, tool box, helmet, vinyl decal car sticker 30 Hour OSHA Trained Sticker 2" high vinyl decal / sticker for Hard Hats, lunch boxes, phones, etc I Make Decals decal Protective laminate overlay to prevent fading and scratching. Self sticking vinyl decal. Strong adhesive for long use Contact us for custom sizes, or bulk discounts. Additional or lessor charges may apply.