These water play bottles add new experiences to any water play activity! Set includes one green pump action bottle and one blue spray nozzle bottle. Size: Bottle with green pump action nozzle - H:155mm. Bottle with blue spray nozzle - H:170mm. Children are being creative when they use materials in new ways, combine previously unconnected materials and make discoveries that are new to them. Messy play enables children to do all these things.