These are USED X2 30L biorb's, grey top and bottom, both used, one has a lot of fine scratches looks cloudy but when the water is in they are not too noticeable and is water tight, the second one deep mark on it, which is shown in the picture's on the bottom left this is also also water tight as the pictures shown, both have new sponges, carbon and air stone's, there are 5 new sponges 5 carbon packs and 2 extra air stones also has the alfagrog/ceramic filter media in the bottom of both, they both have heaters, they both have had a good clean, both orb's are fully tested and working, one orb has the original air pump but the other has a normal pump, any questions please ask.