My lampwork beads are handmade with care in my homestudio in the Netherlands using highquality Italian, German, Tsjechic and American soft glass, also known as 'soda lime' or 'COE 104'. The class is unless mentioned otherwise, wound on a 3/32" (2mm) mandrel. To assure maximum durability and long-lasting beauty, my beads are always properly annealed overnight in a digitally controlled kiln and each bead hole is carefully cleaned using a diamond reamer to remove all release material leftover. I really enjoy making my beads and therefore I hope you to be happy with them. If, for any reason, you are not completely satisfied with your order, please contact me so we can try to work out the problem. If the problem is unsolvable, you can return the beads within two weeks and receive a full refund. (Shipping costs are on you.)