Best Seller New with Tags Dino dreams come true! They’ll light up the night in prehistoric style with our Light-Up T-Rex Costume that’s bound to be a dress-up favorite. It boasts battery-operated LED lights in the spikes on the head for a playful twist to their favorite dinosaur design. It’s crafted from a plush material with whimsical, colorful accents like embossed scales and shimmering foil fabric detail. Its plush material is soft to the touch and will keep your little T-Rex warm and ultra-cozy all day and night long. DETAILS THAT MATTER Lights up on the horned tail and is battery-operated (batteries are included). Velcro closure on back of jumpsuit and headpiece. Underwear and Shoes are not included. THIS SET INCLUDES 2-piece design includes 1 headpiece and 1 jumper. DIMENSIONS Size 3T Headpiece: 20" wide x 12.5" high Neck: 5" wide Jumpsuit: 13.5" wide (chest) x 21" long (to inseam) Inseam: 12" long Sleeve Length: 18.5" long Shoulder to Shoulder: 10" wide Size 4–6 Headpiece: 21" wide x 13.5" high Neck: 5.5" wide Jumpsuit: 15" wide (chest) x 23.5" long (to inseam) Inseam: 17" long Sleeve Length: 22.5" long Shoulder to Shoulder: 11.5" wide Size 7–8 Headpiece: 21" wide x 13.5" high Neck: 6" wide Jumpsuit: 16" wide (chest) x 25.5" long (to inseam) Inseam: 21" long Sleeve Length: 25.5" long Shoulder to Shoulder: 12.5" wide