In most cases, the choice is made between plastic and iron.
1. Metal. You can immediately assess the strength of the material, which is more problematic to defect. The main metals for manufacturing are zinc, stainless steel or copper. Of course, because of the materials themselves, the weight of the watering can is much higher than that of a plastic one, besides, the volume of water fits there more. You should always take care of such a tool: corrosion can begin to form at the bottom. The watering cans made of copper or zinc have an antiseptic and fungicidal effect. Watering cans made of metal are usually used in the garden.
2. Plastic. These are of low weight, which is among the advantages. Also, the manufacturers offer much more varied design than for metal ones. Here, you can choose any color or ornament that you like.