The size of the skirting board is approximately 3.2/1CM, and the wall thickness is approximately 1.2MM. Please refer to the photos for questions about product size. I will not answer questions. As this is a handmade product, there may be some slight errors, please understand. Copper products will oxidize over time. The color may change slightly. Please check the images carefully. Please confirm the images, size, etc., and make your purchase at your own discretion. We may not be able to accurately convey the condition and size of the product. Please understand. Regarding the size, please understand that it is measured and photographed by an individual. We do not accept cancellations after purchase, so please be careful when purchasing. We do not issue receipts, so please understand.