These poi are amazing!! They are perfectly balanced! Flowmass gives you a much heavier poi, and it helps with keeping rhythm and keeping your "flow".
The colors and patterns give an amazing effect, (especially Booyeah! Mode [yes that is the real name, search "flowlight modes" on youtube.]) :D There are 10 different patterns to choose from!! These have quickly become my favorite poi!
Also the crystal poi are incredibly durable! Long lasting amazing poi! I highly recommend these!