Prominently display this sign in explosion prone areas to remind authorized personnel to lock up when they exit. Made of durable, rigid plastic. White background printed in blue, yellow and black. Manufactured in the UK by Jalite. Photoluminescent coating glows in the dark. The left half depicts an explosion and reads, “Explosive” The right half reads, “keep locked shut when not in use” and “Think Safety” Easy to fix to most surfaces using any common adhesive. Measures 100mm x 150mm.