Laser Pegs light up your child's creativity by adding bright, colorful light to their creations. This 403-piece building set lets you build 20 different dinosaur models including Brachiosaur, T-Rex, Stegosaur and more. The kit includes 15 LED lights with glow in the dark features and a light-up sound module that comes loaded with realistic dinosaur roars and growls! Batteries included. ABS (plastic). T-Rex when built is 20"L x 3"W x 12"H. Ages 8+.