I've seen these on various auction listings and if you look around the web, you'll find that these Salvador Dali bottles for Rosso Antico have been featured in exhibitions too. So this set is worth a look.
Dali designed these bottles in the early 1970s for Rosso Antico, which I think was a liquor or dessert wine. Something in that area anyway, The Dali bottles were sold in sets of three, with this being a full set. The moulds for the bottles were destroyed in 1972, so no chance of these being reproduced.
According to the seller, the bottles are glass, with black plastic tops and all are in 'nice, clean condition'. However, bottle no 2 has a tiny flaw where the colour has come away on the edge. There's a close-up shot on the listing.
see the listing for more shots and details. if you fancy displaying these in your home, the bid price right now is £35.