Please Note: This product is packaged in boxes or bags. Please choose the SKU with the packaging you need. This electronic component kit is used to improve practical ability and develop intelligence and a little creativity, also for research and development on how to apply it to life. Really cool and perfect if you want to start with electrical engineering. Specifications: Type: Diode, Triode, Metal Film Resistor, Aluminum Electrolytic Capacitor, Ceramic Chip Capacitor Package List: 820PCS 1/4W 1% Metal Film Resistors: 20PCS of each value, all 41 values in one package, 12,102,202,332,472,512,682,752,822,912,1002,2002,2202,3302,4702,5102,6802,7502,8202,9102,1K2,10K2,20K2,33K2, 47K,51K2,68K2,75K2,82K2,91K2.100K2,200K2,220K2,330K2,470K2,510K2,680K2,750K2,820K2,910K2,1M 300PCS Ceramic Capacitors (50V): 10PCS of each value, 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 Capacitors: 10PCS of each value, all 12 values in one package 50V0.22uF,50V0.47uF,50V1uF,50V2.2uF,50V4.7uF,25V10uF,16V22uF,16V33uF,16V47uF,16V100uF,16V220uF,16V470uF 180PCS TO-92 Transistors: 10PCS of each value, 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 LEDs: 20PCS of each color, all 5 colors in one package Red, Yellow, Blue, White, Green 100PCS 5mm LEDs: 20PCS of each color, all 5 colors in one package Red, Yellow, Blue, White, Green 100 PCS Diodes: 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: 1PCS of each value, all 4 values in one package Color: Mixed Color (Random color, 'does not accept the specified color.) Material: electronic components Package Contents: 1 x 1818PCS DIY Electronic Components Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real one. The allowed measurement error is +/- 1-3 cm.