Need to entertain your little bub while on the go? We've got that all sorted out for you! These card-sized mini busy binders, measuring approximately 8.7 x 9 cm, are designed specially for outings or travel. Each set features 4 themes (Sea World, Zoo Animals, Vehicles and Fruits) in 2 languages - English and Mandarin - this would make a perfect alternative to screentime. Tried, tested and proven!