These are made out of polymer clay, making them durable but also lightweight! Hooks are made of stainless steel but are not guaranteed to be hypoallergenic. Please be cautious if your ears are sensitive. Backings are made of rubber, for a comfortable fit.*These are handmade, so every pair is unique! Details and colors may vary slightly from the picture, but never enough to detract from the value of the product*All shipped orders are packaged well and posted in a sturdy box to minimize breakages during delivery. Although polymer clay is quite strong, handle products with care once received to minimize damage and breakages.