- Size: One size • Magnetic holder for reading and sunglasses. • Made of high-quality alloy metal with strong magnets. • Attractive design that fits most outfits. • Buttons more suitable for thin clothing like t-shirts. • Compatible with standard sunglasses, safety glasses, swimming goggles, video glasses, computer glasses, and reading glasses. • Includes 1 magnetic glasses holder and 4 interchangeable snap buttons. • Snap size: approximately 3 cm; snap button: 2 cm.