WARNING: Do NOT buy this as a bit driver.

Here's a heads up on a product which looks cool but is fatally flawed, at least if you expect to be able to use it as a standard bits driver. On Amazon it is called: "Alloet Stainless Steel Socket Extending Rod Keychain Extension Bar for Screwdriver" No bits of any kind are supplied, at least not from the ebay vendor I bought mine from.