INCLUDES 2 RANDOM COLOR JUMBO 9" AXOLOTLS - These axolotls are one of those grow pets that slowly expand and grow after being submerged with water. Place it in water and it will slowly grows way bigger! The smaller fish is 6" long and 2.5" wide out of the package. Full sized smaller fish is about 11.5" x 5" x 2.5" after about 48 hours. The larger size is 9" x 3." out of the package. Full sized larger fish is about 16" x 6.5" x 3" after about 48 hours. Dry out and use it again. It shrinks with salty water though most shrink simply from air after being removed from water. This is a fun bath or pool toy! Ages 6 . Available in 4 colors. Expandable water toys or grow-in-water toys are made from a superabsorbent polymer. Superabsorbent polymers are long chains of molecules that soak up tremendous amounts of water because the water is drawn into and held by the molecules of the polymer. These polymers can absorb as much as 500 times their weight in plain water. They are toys that expand after putting them into water for several days.