6 months & up. These non-slip weighted plates feature a ring to help with utensil training. Food glides easily onto forks and spoons with the raised ring. Remove the ring and continue using the plate once utensil use is mastered. Top rack dishwasher safe. Microwave safe. BPA, phthalate and PVC free. Measures 7.3" x 7.3" x 1.3". Set of 10 plates.