I use natural stones that I cut, shape & polish to create one of a kind necklaces, bracelets, earrings, anklets, keyrings or collars for your pets! I use chains or leather made to the length you want it to be. Just measure the size of your wrist or ankle & add how loose you want it to be. If your wrist is 7 in. and you don't want it to hang over your hand, then add 1/2 in. So order it 7 & 1/2 inch in length. If you want your necklace to show with a high shirt collar, take a necklace and hold it to the length you want it to hang on your neck, then measure the length. Always measure twice, you pay for shipping if more or less chain is needed.