6 inch Matte finished UV/Shatterproof Christmas Ball: Red. Shatterproof Christmas ball ornaments are ideal for outdoor use. Hang them from the bare branches of your favorite trees, dangle them from an entry archway, or attach them to your favorite holiday wreath. Because they are UV protected, you do not have to worry about them getting damaged from the sun. Each ornament measures 6 inches in diameter and has a matte finish.