These high quality male pin header are electronic components, connector raw materials. Widely used in electronic circuit, electrical appliances, instrumentation ,PCB circuit board and so on. Can be cut into the size you need. Electronic factory can buy these male pin header as part material, college students who major in electronic engineering or automation can use to create high- products to participate in science and technology competition project. Warm notice:, keep from children. Adult is required. Suitable for , Raspberry Pin or any other electronic project. Straight mounting, Single , Male pin header, electric component, easy to use. Good quality header pins, header pins on 0.1 centers. They are easy to be cut to any length if needed. They are suitable for electronic project. Pin pitch: 0.1 inches / 2.54mm Number of pins: 40 pin Type of : Single- Type of connector: straight Material:Iron+Plastic Colour:Silver Black Package includes:100 x Male pin header connector 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.