4 Corner Holes Pre-drilled for easy mounting on your walls. Material : Tinplate / metal. Lightweight and durable. Ideal for both home & yard use and for professional businesses, our signs are carefully designed to look sleek, authoritative, and easy to read. Product upgrade: thickness increased by 10% Makes an excellent gift idea: Got a friend with a new home? Will be celebrating his/her birthday soon? Just finished renovating his man cave