Vintage shell clusters made mostly into pairs, for jewelry making, earrings especially. Natural organic materials, about 40 pieces per package (and I counted the clusters as one piece). 25 to 30mm, approximately. They have a net backing on them, that the shells were bound to with glue, very sturdy. Sometimes you have to break the cluster pairs apart but easily done, butter knife and just pull is my method. Would be great mounted into bezels or pushed down in to Apoxie Sculpt, made into connectors. Use in assemblage on our various brass blanks...that's my intention. These present so many design possibilities and I don't know how long I will be able to get them...so get them while I can. I know I've got a bunch stashed away for me to use in my own work. Approx. 4-4.5 ounces per package.