Fine and tiny, silver and black glass encased circuit boards. Of all the rare finds THESE! are the rarest of all. Oh lucky lucky lucky! (not telling you where I found them. Tis a secret) Its been over a year since I last found some. They make for such unique Bugs. No one else in the WORLD has made any like these! ( I hope) These are for sale in my Etsy shop, brand new today. Please find links to my Etsy shop below.