These round dot drops will add color & interest to your handmade creations. They measure 18mm, are made from brass that has been colored on both sides with epoxy & the edges have been silver plated. This listing is for 25 drops in a variety of colors as photographed. They are the same on both sides & are lightweight enough to use in mass. The hole will easily accommodate 18 gauge wire. They do not contain nickel or lead. We recommend 18 gauge 5.5mm OD jump rings which you can find here: https://www.etsy.com/shop/CreatingUnkamen?ref=l2-shop-header-avatar&search_query=special+purchase See more drops in many shapes & sizes here: https://www.etsy.com/shop/CreatingUnkamen?search_query=25+colorful 25 - 18mm Colorful Dot Drops 100% Guarantee