Ear, Eye and Head Protection Must be Worn signs are a vital part of overall work place management. Our signs ensure that you have the appropriate control measures in place to identify potential hazards and mitigate against them. Signs are available in a wide range of sizes and materials and are suitable for long term outdoor use. Most popular sizes are 16″ x 12″, 24″ x 16″ and 32″ x 24″. Don’t see the sign or size you are looking for? You can call us on 025-31212 or email email@example.com to discuss your requirements.