Object Oriented Question

Hey Di Di Co ships 3 different products, a fiddle, a dish and a spoon. The shipping department needs an object-oriented PHP program written that allows them to get the weight and dimensions of each item. They also need to be able to change the weight or any dimension on the fly. Finally, they need to be able to easily create new items in case the merger with Humpty Inc goes though.

Item Measurements Fiddle: 1 kg, 60cm x 20cm x 10cm Dish: 0.1 kg, 30cm 30cm x 5cm Spoon: 0.05kg, 15cm x 5cm x 2xm