The base for our panels is high quality, very durable polymer matrix. ✔️Each panel has quick connectors from all four sides. ✔️Simply connect them together, like a puzzle to any size of backdrop you would like. Standard size panel - 30x30 cm. Pixel size panel - 29x29cm. -Premium quality panels. - Production and shipping time 3-4 weeks. - Shapes: square,octagon or circle.