Bowl sets are available in 1-2-4-6-8-12 cup sizes. They are microwave and dishwasher safe and are made of stain resistant polypropylene. GRIP – Rests comfortably over your index finger, using your palm and thumb instead of grasping with your fingers. EGG CRACKING LEDGE – Convenient location to crack eggs while keeping the entire cracked egg inside the bowl. MEASURING GUIDE – English and Metric measurements inside the bowl. GULL WINGS – Fold ingredients back into bowl toward the pouring spout COMPLETELY eliminating overspill. RUBBER RING – Non-slip rubber ring adds stability to Bowl when mixing ingredients. CHANNEL – Aligns ingredients to flow smoothly to the pouring spout. PIVOT – Securely positions bowl on another container improving control while pouring. DRIPLESS SPOUT – Flat edge on spout stops drip from running down the front of the Bowl.