Gorilla Mens One Size Moon Beams Mellon Gorilla Grip Moon/Beans/Melon medium tri-quad fin set. Medium tri-quad (5 fin) set with 1 moon, 2 melon, and 2 tie-dye fins. Fin system: futures. Gorilla Machete template: good for ripping all sorts of juice. Designed with a flat foil on the side fins delivering fast, controlled directional changes.