these are basically like ozotics on steroids. the elytra glitters and the multichromes by ozotic were discontinued a while back, these are a very good replacement.
i should do a comparison post one of these day. i still love my ozotics, don't get me wrong, but these are sooo much more dense.
these bottles are so pretty in person.
here are the ones from the beatles collection:
mean mr. mustard:
i am the walrus: