Back to the 90s, baby! These earring charms are made out of heavy duty plastic (NOT shrink plastic). They are waterproof and very durable. They have a glossy sheen to them and are scratch resistant. The image is printed on the front, and the back is white. The earring hooks are hypoallergenic stainless steel and come with a rubber backing. Measurements: Red (Left)- 1.6" by 1.5" Kitty (Right)- 1.8" by 1.5"