Learning Resources Mini Dino Counters (Set of 108). These prehistoric mini plastic counters are perfect for counting, sorting and developing other early maths skills! Made from soft plastic, these dinosaur counters are 4cm 5cm tall and come in six shapes and colours (Blue, Orange, Red, Yellow, Purple and Green). Set of 108 counters includes 16page booklet of dinosaur facts and activities. Storage tub also included. Suitable for ages 3+