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). The white Great Lakes 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 and each piece includes Leland blue stones. Necklace chain length is adjustable between 17.00 inches and 19.5” Made by hand in Michigan!