MAKE YOU THE FOCUS: Make your friends roll with laughter when you clamber inside this huge T Rex Inflatable Adult Costume, complete with an oversized head, an long tail and tiny arms. This T-rex costume is a good size for all adults of 65-78 tall. And there's elastic around the wrists and ankles to make sure you and your dino's moves are synchronized. Spruce up like a dinosaur and stroll in comfort.