Length: 16 Inches with 2 Inch Extender Chain - the length of an item is measured from end to end, including the clasp. To measure your neck size, use a flexible tape measure or cord and wrap it around the base of your neck. Add 2 inches to the measurement for a comfortable fit. Material: 4mm Cyan Fimo Heishi Beads. Durable, lightweight, and easy to care for. They can be cleaned using a damp cloth (mild soap and water). Pendant: [3N] 7/8+ Inches Shark Tooth (Each Tooth is Unique) Lock: Lobster Clasp that is easy to use and secure. This beaded shark tooth necklace is a perfect gift for yourself or someone special who loves the ocean and nature. Each item is handmade and inspected to ensure high quality for our customers. Great for gifts! Returns: We believe in providing excellent customer service. 100% satisfaction guaranteed. In any event if you feel that you are not satisfied with your purchase then feel free to contact us. REAL SHARK TOOTH! Shades and sizes vary. Each tooth is unique!