These Round Boards are made for pouring of resin glass coat finish as normal canvas stretched on frames are not suitable for resin due to the weight of the resin. They have a solid construction made from MDF and Ply Wood with a frame on back. Boards are double primed in white. Size 30cm diameter. *THIS SIZE CAN BE SHIPPED BY AUSTRALIA POST USING STANDARD SHIPPING FEE AT CHECKOUT. YOU CAN HAVE 4 BOARDS THIS SIZE SHIPPED FOR THIS PRICE. Any extras you will need to get a quote from us firstname.lastname@example.org as they will go by courier.