These are used and in very good condition, they all work.  These come with batteries, the plastic strips just need to be removed once they are received. T-Rex epic roarin 21"- the button makes him roar and hold the button down his head shakes back and forth. Extreme chomping T-Rex 19"- the button makes his mouth this is the only one not battery operated). Control n conquer primal attack carnotaurus 15"- The head is controlled by the tail, turn the tail and the head turns and move the tail up and the head moves down. When the button is pressed it closes his mouth and he roars.Thrash N throw T-Rex 22"- the tail controls the head back and forth and up and down making roaring sounds. The bottom of his foot button makes stomping sounds when pressed on the floor. Sound slashing Therizinosaurus 15"- the tail moves his head back and forth making slashing sounds and the button makes him chomp making a roar.

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