Introduce these small metal jugs as the next level of difficulty to pouring activities. Children can't automatically see how much water is left in a jug or how full the jug is. Alternatively these little jugs would make an excellent alternative if you are a little bit worried about giving toddlers glass jugs when they first start practicing to pour. Dimensions (cm): 6(h) x 5 (dia), 90ml each. Set of 2