Dino-mite! 

✦ Earring hooks are made of hypoallergenic stainless steel, which includes a rubber backing.

✦ Charms are made of heavy-duty plastic (NOT shrink plastic!)

✦ Waterproof, scratch-resistant, and durable.

✦ Image printed on the front, back is solid white.

✦ Measures approximately 1.5 x 1.5".

✦ Made with 💘 in Philidelphia, PA.