Double Trouble with new born twins. They cozy up together in a sleeping bag in their box to go to sleep and keep their mum on her toes during the day. One twin is wearing a striped onsie while the other is in a floral onsie. Box is made of cardboard and measures approximately 4.5"x 3"x 2", Mice are just over 3" tall. Bedding is made of cotton. Mice are made of cotton with polyester filling.