With our Prototype Breadboards you can test your Arduino project quickly. It has 170 plug-in contacts, can be connected with others simple and easy and has on the down side a double-sided adhesive stripe for the simple attachement on all surfaces. Moreover, it is completely solder-free and you save a lot of time.Please consider that a colour selection is not possible and you will receive a prototype breadboard in a random colour. All colours can be seen in the product pictures (yellow, red, black, white, blue). We thank you for your appreciation.