Walnut wood circle pendant is made from walnut wood that has been stained a bit darker than the natural wood. It's sanded smooth with 3 different grits of sandpaper. Chain and findings are gunmetal plated and come in 18in or 24in chain. Clasp is a spring ring. (model in pic is wearing the 18in chain). Circular pendant measures 1.25 in (33mm) Thickness of the pendant is 1/8in (3mm) approximately Please remove before showering/swimming. The polyurethane finish imparts a bit of water resistance, but to maintain the beauty of your item, you should not get the pendant wet--it is wood after all...... Due to the handmade nature, yours may vary slightly from the picture. Also, keep in mind monitor settings can be different from screen to screen, so the color might vary slightly from what is pictured.