Our very cool Penguin Waddle 3-D penguin ruler is fun, form and function all in one foot of penguins. It's all 12" and made of a very sturdy, yet flexible plastic, with a 3-D lenticular King penguins on ice scene laminated in between the centimeter and inch measurements. yes, the measurements are conveniently in both inches and centimeters, with a great 3-D King Penguins on the beach image in all 12 inch sizes. Move the ruler in any direction see the penguins move and play in 3-D!  A great and handy addition to any penguin lovers life that needs exact measurements at your fingertips.