This product is a solderless breadboard set, which is made of plastic material, with good texture, safe and practical. Easy to install and use, it can be easily applied to your project. It is a very practical accessory that will meet your needs well. Features -Color:Assorted Color -Material:Plastic -Size:8.10X5.30X1.00cm/3.18X2.08X0.39in - Small breadboards for easy assembly and storage of small circuits. Just insert 400 holes for electronic circuit test and experiment. - Parts and wiring changes can be easily replaced by simply unplugging the electronic circuit and plugging . - Combinations of different lengths jumper wires, various uses, easy to identify and easy to use. - Excellent craft, carefully down to every detail to give it and beautiful look. - Simple in structure, easy to use, not easy to deform, you can use it with confidence. Package list: 2 x breadboards 65 x jumper wires