Little Dinosaur Midi Pegboard. Our Dinosaur Template comes in GREEN! The Midi Hama Beads with a diameter of 5mm are the most popular within the Hama range. We recommend from 5 years, as children at this age have control of their own motor skills. Children and adults can have fun with the plastic beads, whether they string them, press them or iron them. Pictures show design created on a pegboard with Hama Beads. Beads are not included with this purchase which is for pegboard only.