The product is a strip circuit board about 1 joint,2 joints and 3 joints stripboard,and the perforated board is more suitable for analog circuits and discrete circuits.Product size is 50mm X 70mm, pitch of 2.54mm, a pore size of 1.00mm, 1.2mm thick single-sided stripboard material is copper.The material is PC+metal, all holes are through-plated for strength,which can effectively prevent the pad from falling off.Great for electronic and soldering DIY project.4 mounting holes at the corners of the board are very convenient for installing them togetherColour:As shownMaterial:PC+metal(Due to different batches of products, the appearance of the product may be different, but the function is the same)Package Contents:15 * Circuit StripboardsOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.