Science Graduation gift - This DNA earrings is a must for a Biologist, a Doctor or a Nurse, bringing your habit to one more science level in your life and satisfy your nerdy needs! Material: DNA Necklace made of environmentally friendly alloy + stainless steel,double helix earrings made of ally Size: Biologist Jewelry - the DNA charm is 2.9*0.8cm,the science flask charm is 2.6*2.1cm, the chain length is 63cm. Biology Earrings - Love chemistry? Love biology? Love Rosalind Franklin? Love these double helix earrings!♥Perfect for a biologist, a science geek, or anyone with DNA... Forensic science gift - Chemistry Gift for her, Biology Gift for her, DNA Earrings, Double Helix DNA Gift, Biology Student, Medical jewelry.Unique dopamine chemical molecule necklace for people who have desire to fight off additions, science lovers, chemistry enthusiasts, biology majors, biochem studies, and chemistry majors. Tips: 1. When undressing the initial Jewelry, you can wipe each piece with a clean soft cloth to remove oils and perspiration. 2. Replace your jewelry often, not wearing the same jewelry for a long time. 3. Avoid prolonged contact with water, remove jewelries before take a bath or swimming.