The bowl has a rubber ring on its base which keeps it in place during use.
Contains: Two Bowls; Sizes: 2,3 l (dia. 22 cm) and 3,7 l (dia. 26 cm)
Material Bowl:Poly Propylene Plastic, Foot ring: Synthetic rubber
Microwave-safe; heat food up to 100°C
Freezer-safe
Dishwasher-safe.