The MOAB contains artillery shells with tails, others with crackle, and some with changing colors. Watch out for the palm trees, chrysanthemums and whirlwinds. This one is loaded with shells that give you two distinct breaks in the air at the same time. You will want to salute the spectacular new triple break, an industry breakthrough that paints the sky with three patterns at one time. Another favorite for a Great Grand Finale!! Be the envy of your neighborhood when you bring home this baby!!The TubesThe HDPE tubes are a single piece mold that assures optimal conditioning of the mortar for launching and unrivaled safety standards. No cardboard or fiberglass tubes can match the reliability of our mortars. Be wary of competitor's claims to the contrary. Other kits may use an HDPE tube, but a tube glued or stapled to a base cannot compete with our single piece molded base.The Shells The assortment comes with 60 reloadable shells: singles, doubles, triples, and canisters.