500PCS of the heatsink 

This product is a heatsink designed for TO-99 metal can-type transistors, FETs, and operational amplifiers, highly valued for audio applications. 
Made from aluminum die-cast, it can be connected as shown in the photo to enable thermal coupling, making it ideal for use in differential amplifiers. 
We are offering this at a special low price, so don't miss the chance to purchase it!

Due to the very low price of this product, the cheapest shipping option does not include a tracking number. If you need a tracking number, please select the standard shipping method.