Inflatable t rex Dinosaur costume  using 100% Polyester; Halloween inflatable Dinosaur costumes one size fits all (Batteries not Included)，Inflatable halloween Dinosaur costume Requires 4 x AA Batteries (not included);Halloween inflatable Dinosaur costume must be 4 AA batteries or it will not be powerful； Battery operated fan inflatabes blow up Dinosaur costume adult in seconds;Our fabrics are flame retardant to high standards.We guarantee the inner blower quality for 2 years; The battery pack in your pocket, or it will overheat. Adjust the direction of the fan and tighten the tension rope to get the best inflating effect. Halloween inflatable Dinosaur costume one size fits the person from 5'3 to 6'2 (160cm to 190cm)，enhanced 2-puller zipper and durable 100% polyester fabric；