The IceCap Mobile Phone Stackable Filter Lens Kit is a versatile camera accessory that comes with a large 52MM lens clip. It includes four distinct lenses, each with its own effect, to help you capture the true beauty and color of marine aquariums. With this kit, you can easily switch between the different lenses to achieve your desired result. The kit contains a 20k and a 15k color filter that helps remove the overabundance of blue light. The CPL lens is an anti-glare lens that helps prevent photo distortion from the bright lights over the aquarium. Additionally, the Macro Lens allows you to get up-close and personal with the photo subject to capture it in detail.