10 pairs sterlng silver small butterfly earring clasps backs scrolls .925 Approximate weight 0.2 Grammes. Please note that the hole size and post - pin thickness varies and there is no standard. How will you know that the butterfly will fit your earrings. Sadly you don't. What we used to have to do for people when we had our bricks and mortar shop was open the hole of each butterfly slightly. This is a tricky procedure and can be done with a pin or needle, but needs extreme caution. If the hole is too big and the post - pin slips through too easily you can only squeeze the butterfly - scroll section and this sometimes grips the post - pin of the earring better. The weight indicated is per 10 Please note we do NOT supply gift boxes so your item will NOT come in a gift box. Please note that ONLY sterling silver items weighing more than 7.2 grammes and gold items weighing more than 1.2 grammes are required to carry a UK hallmark, as per UK law. For more information about the UK hallmarking laws please visit one of the assay office websites or the British Hallmarking Council website. Please note most connecting rings will NOT be soldered and for your peace of mind we recommend you have them soldered by your local jeweller. If you have purchased a converter or clip or fitting and would like it connected or attached to another item you have also purchased from us in this transaction, please advise us immediately after or before the transaction. We will email you when your item is dispatched. Please cheque SPAM and JUNK folders. CUSTOMER SERVICES AVAILABLE FROM Monday - Friday 8.2am - 3.2pm (Excluding English Bank Holidays). The pictures may show multiple items so that you can see the product in more detail, but please be aware you are purchasing 1 item only unless this description states otherwise.