Feature: 1. RELIABLE AND DURABLE: Professional breadboard, made of premium materials, ensure high reliability and durable accuracy. 2. STRONG COMPATIBILITY: Electronic component kit, perfectly compatible. Suitable for interested beginners to start learning electronics. 3. 830 HOLE DESIGN: The breadboard is designed with 830 holes, providing spacious pin space for easy experimentation and connecting electronic components. 4. EASY TO USE: Simple pin connection for beginners to get started quickly. Includes W resistor, 2.54 potentiometer, jumper wires, power supply module, and more. 5. BOXED DESIGN: Packed in an integrated box, all electronic components are packed in the box to reduce confusion and loss, easy to carry and store. Specification: Item Type: Electronic Component Kit Material: Metal Product Size: Approx. 18 x 9 x 4cm 7.1 x 3.5 x 1.6in. Package List: 30 x 14W Resistor 100R 30 x 14W Resistor 1k 30 x 14W Resistor 4.7K 30 x 14W Resistor 10K 30 x 14W Resistor 47K 30 x 14W Resistor 100k 30 x 14W Resistor 1M 2 x 15mm 2.54 Potentiometer 10k 2 x 5mm 2.54 Potentiometer 100k 3 x F5MM Green LED3 x F5MM Yellow LED 3 x F5MM Red LED3 x F5MM White LED6 x 12x12 Key 3 x 12x12 Keycaps White 3 x 12x12 Keycaps Red 3 x 12x12 Keycaps Blue 3 x 12x12 Keycaps White 3 x 12x12 Keycaps Green 2 x 2.54 Row Pin 40pin 1 x Box of 140pcs Jumper Wires 1 x 65pcs Bread Wire1 x 830 Hole Breadboard 1 x Bread Power Supply Module 2 x Plastic Box Note: Manual measurement, please allow some errors.