About Product:Blackboard source manufacturers, Blackboard support customization. For details, contact customer service indoor and outdoor can be used, waterproof, sun protection, moisture proof, insect proof, acoustic absorption, used in school teaching (no foaming, no soft drop, super long service life!) Troop field command, bulletin board Blackboard (Customizable right angle), outdoor photo blackboard price is square price, excluding freight (default logistics to pay for self-delivery) delivery requires wooden box packaging (40 yuan/meter) contact online customer service for details. Or call WeChat.