This product is a solderless breadboard set, made of durable 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 Colors-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 testing and experiments.- Parts and wiring changes can be easily replaced by simply unplugging the electronic circuit and plugging it in.- Combinations of different lengths of jumper wires, different uses, easy to identify and easy to use.- Excellent craftsmanship, carefully down to every detail to give it a chic and beautiful look.- Simple in structure, easy to use, not easy to deform, you can use it with confidence. Packing list: 2 x breadboards 65 x jumper wires