These green limpet shells are sold in bags of 100 shells. Green limpets, also referred to as half-white limpets, are found on rocks in intertidal waters in areas of West Mexico to Ecuador. Pretty green limpet shells are teal green in color and have a polished interior. As these are a natural product you will find some of the shells a bit paler or white. Shell Size: 1/2" to 1 1/4" long. Weight of 100/bag: 86.2 grams or 0.19 pounds (approximate)