CRYSTAL VIBES. READY TO GO!The reusable Crystal Straw by VitaJuwel is made from extra-durable, pollutant-free glass and features a genuine, hand-picked gemstone. It comes with an all-natural bamboo carry case, a 100% plastic-free cleaning brush and is available with several options of crystals.All of our stones are hand-picked, free from artificial coating and 100% authentic. Weu2019ve been certified by the EPI - Institut for Edelsteinpru00fcfung ( u201cInstitute for Gemstone Examinationu201d). All of our gemstones are in accordance with RAL RG 560 and CIBJO. They comply with the GKS quality guidelines for gems and minerals.