Keep a little bit of all 5 Great Lakes with you always! • Made of 316L Surgical Grade Stainless steel (Hypo-allergenic, does not rust or tarnish, lead, nickel and copper safe), Tempered glass • Pendant Measures approximately 3/4 inch (20 mm) (a little larger than a penny) • Adjustable chain, 17" to 19.5" • The white Michigan piece is stationary and will not move. This is made of Michigan hardwood, hand painted white to really stand out • Sand, pebbles, shells and beach glass are loose inside, mixed from all 5 Great lakes.