Square filter lens case for 3 sheets, 100x100mm, filter lens pouch, dustproof, and drawer type. The filter case holds three 100x100mm square filters and one filter holder. It properly stores filter lenses. Lightweight and convenient to carry. Shockproof, dustproof, soft and flexible. It can hold the K&F Concept NANO-X series square filter holder system, but the NANO-X PRO holder is not compatible. (❉ Filters are not included.)