Moses growing T-Rex Put this T-Rex in cold water and watch it grow to about 50 cm in 15 days! It can also shrink. If the dinosaur is big enough, you can play together! Specifications: Colour: red Gender: junior Material: plastic Package dimensions: 10 x 15.3 x 6.3 cm (L x W x D) Dimensions dinosaur: up to 50 cm Age: from 5 years old