These are not too badly priced. They are three stage which is very usefull. Both of those received were a little rough the first time I tried t thread them onto the lenses but afterwards they screwed on and off easily.
This product is great and works really well. The only problem is that it flew all the way from Hong Kong! Had I known that I would have picked another supplier based in the UK even if it had been a couple of quid more. This is not the first time this has happened to me. AMAZON - YOU NEED TO MAKE IT MUCH CLEARER WHERE SELLERS ARE BASED.
What an amazing camera hood! Three postions, the fully colapsed off, then two lengths of hood to keep the lense clear of reflections. It is threaded to take extra filters, and a lens cap. Best of all a wonderful low price, and a camera hood that does what it's supposed to do.