Description: Undergone strict test and produced with high-quality material, this power transistor set that has large quantity and different specifications will provide you with excellent performance. There is a dedicated storage box that has compartments, this set is easy to store and carry, and since each power transistor has clear mark, you can identify the needed transistor easily and quickly when use. These power transistors are mainly made of metal and plastic, which are both anti-corrosion and durable. The length of the storage box is 20cm, the width is 14cm and height of it is 3.6cm. This set is suitable for non-contact switches, student experiments and so on. Item Name: Power Transistor Set Material: Plastic,Metal Size Details: 20cm x 14cm x 3.6cm/7.87" x 5.51" x 1.42" (Approx.) Notes: The quantity is about 840pcs, due to manual calculation, the quantity might has 1-5pcs more or less, hope you can understand, thank you. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 840 x Power Transistors (35 x BC327 PNP/BC337 NPN/BC517 NPN/BC547 NPN/BC548 NPN/BC549 NPN/BC550 NPN/BC556 PNP/BC557 PNP/BC558 PNP/2N2222 NPN/2N3904 NPN/2N3906 PNP/2N5401 PNP/2N5551 NPN/A1015 PNP/C1815 NPN/C945 NPN/S8050 NPN/S8550 PNP/S9012 PNP/S9013 PNP/S9014 NPN/S9015 PNP)