Sizes Set of 16 pieces. The set is available in four sizes: 6mm, 8mm, 10mm, 12mm. It includes four stud centers of each size. Material The stud centers are made of steel for excellent marking performance on solid materials. So you can use them for both hardwood and softwood. Surface treatment: chrome plating (rustproof and beautiful) Durable Wear-resistant, corrosion-resistant, necessary for carpentry, very easy to store and maintain. Method Just drill holes, insert dowel centers and press joint together. The dots on the centers of the pegs accurately mark the positions of the holes on the other member. Application Two connection plates correspond to the position of the center of the hole of the plate and serve as a support for painting. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don't hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it