K9 CRYSTAL: This is the same crystal that is used for camera lenses and other optics because of its extremely high light transmittance and light-refracting characteristics.ULTRA CLEAR: Polished and hardened, for a perfect and scratch-free surface. Every Lensball has been flawlessly crafted out of K9 crystal and made 100 percent scratch and bubble-free.PERFECT FOR PHOTOGRAPHY: Lensball is made for beginners as well as for professional photographers. To make this accessible for all levels of photography, Lensball does not only work with professional cameras but it is also suited for any smartphone camera.SECURE AND BEAUTIFUL PACKAGING: All Lensballs are put in a beautiful and secure box designed by Lensball in the Netherlands. The additional microfibre bag not only protects the Lensball from getting scratched but it also ensures that your Lensball is dust and fingerprint-free at all times.QUALITY GUARANTEE: Every Lensball is flawlessly crafted and goes through multiple thorough quality checks. Therefore we can guarantee a high-grade optical crystal ball.