The packaging says 110 and I think that's the same number but I haven't counted to verify their claim. It comes in three large packs of four light packs, each containing two watch batteries and a side switch to turn the LED lights on and off. There are two glowing orbs that light up when they hit another object or when you bounce off them. The price they charge for a set is reasonable considering they ship 12 watch-sized batteries and 110 pieces of snap-on ABS plastic for about half to a third of the price Lego charges for a comparable number of pieces required per set. In other words, if you're paying a little over twenty bucks for a 110-piece set that includes batteries and lights, don't expect the same quality or build quality as a high-end blockset. I don't expect my sons to play this toy for long so value for money is pretty consistent. All of the lights in the set are glowing, and the pieces have no sharp or rough edges, and they snap together fairly easily.
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