Material: 201 Stainless Steel + PP
Feature: Durable, anti-fall, anti-skid
Size: 11oz = 11cm diameter = 4.33*1.38 inches
21oz= 14cm diameter = 5.5*1.57 inches
47oz= 18cm diameter = 7.09*2.17 inches
88oz= 21cm diameter = 8.27*2.95 inches
These bowls are nice and sturdy. I chose these because they have the rubber on the bottom to keep them from sliding, I really like the size, too.
I bought two different sizes of this bowls. I like the rubber ring on the bottom as it prevents my dog from scooting the dish around. Overall, they are very nice sturdy bowls