This electronics components kit is used to improve the practical ability and develop intelligence and some small creativity, also for research and development about how to apply it to life. Really cool and perfect for you if you want to get into electrical engineering. Specifications: Color: Multicolor Type: Diode, Triode, Metal Film Resistance, Aluminum Electrolytic Capacitor, Ceramic Chip Capacitor Package Size: Package Weight: Package List: 820PCS 1/4W 1% Metal Film Resistor: Each value 20PCS, all 41 values in one package 1Ω, 10Ω, 20Ω, 33Ω, 47Ω, 51Ω, 68Ω, 75Ω, 82Ω, 91Ω, 100Ω, 200Ω, 220Ω, 330Ω, 470Ω, 510Ω, 680Ω, 750Ω, 820Ω, 910Ω, 1KΩ, 10KΩ, 20KΩ, 33KΩ, 47KΩ, 51KΩ, 68KΩ, 75KΩ, 82KΩ, 91KΩ, 100KΩ, 200KΩ, 220KΩ, 330KΩ, 470KΩ, 510KΩ, 680KΩ, 750KΩ, 820KΩ, 910KΩ, 1MΩ 300PCS Ceramic Capacitors (50V): Each value 10PCS, all 30 values in one package 2P, 3P, 5P, 10P, 15P, 22P, 30P, 33P, 47P, 68P, 75P, 82P, 101, 151, 221, 331, 471, 681, 102, 152, 222, 332, 472, 682, 103, 153, 223, 473, 683, 104 120 PCS Aluminum Electrolytic Capacitor: Each value 10PCS, all 12 values in one package 50V 0.22uF, 50V 0.47uF, 50V 1uF, 50V 2.2uF, 50V 4.7uF, 25V 10uF, 16V 22uF, 16V 33uF, 16V 47uF, 16V 100uF, 16V 220uF, 16V 470uF 180PCS TO-92 Transistor: Each value 10PCS, all 18 values in one package 59012, 59013, 59014, 59015, 59018, A1015, C1815, 58050, 58550, A42, 2N5401, 2N5551, A733, C945, 2N3906, 2N3904, 2N2222, A92 100PCS 3mm LED: Each color 20PCS, all 5 colors in one package Red, Yellow, Blue, White, Green 100PCS 5mm LED: Each color 20PCS, all 5 colors in one package Red, Yellow, Blue, White, Green 100 PCS Diode: all 8 values in one package 1N4007 25PCS, 1N4148 25PCS, 1N5399 10PCS, 1N5819 10PCS, FR107 10PCS, FR207 10PCS, 1N5822 5PCS, 1N5408 5PCS 4PCS Prototype PCBs: Each value 1PCS, all 4 values in one package