Feature●This is a great assortment of transistors for electronic professionals or enthusiasts.●They are also good replacements for your broken ones.●All transistors are well packed and assorted in a transparent box for convenient storage and use.●The transistor kit has compact size and light weight, easy to carry around.●Transistors are made of silicon material for long service life. They are basic semiconductor device that control current, which can also be used as a non- switch.Description VELUNE