Features: The breadboard is made of ABS plastic, providing durable performance. Each row and column is labeled with corresponding letters and numbers to help reduce connection errors. Equipped with tight plug-in contacts to ensure components remain securely in place after assembly. Features self-adhesive backing for easy mounting on platforms such as prototype shields. Solderless design makes it ideal for prototyping, circuit design experiments, and various DIY projects. Specifications: Material: ABS Color: White Quantity: 3 pcs Number of Holes: 400 Length: Approx. 8.5cm / 3.35 inches Width: Approx. 5.5cm / 2.17 inches Weight: Approx. 38g Package Included: 3 x 400-Hole Breadboard Note: Breadboards only, no additional components included.