2X Spare Bulb Pyrex Glass Tube Pieces for Nunchaku 2 Tank Rainbow Bubble Fatboy Replacement (Rainbow Bulb)

Seems to be good quality. Should have bought the clear glasses though as I didn’t realise how opaque the rainbow ones were. All you have to do is hold it up to a light source to check how much liquid is inside but that can become annoying when out in public or in a dark room. After being dropped a couple of times the glass hasn’t smashed so good overall.