Neutral 18% Grey / Gray Card with matte finish for scratch resistant. Non Reflective and Waterproof. Tax Included. Perfect for setting exact color balance. Works with any digital camera. Perfect for DSLR, Video, Film and Photography. Card size:3 1/3*2 1/8 inches( 8.5*5.4cm). Small enough to keep in your pocket or on a keychain. Compact, sturdy and Lightweight. Net weight:35.5g Package includes three color calibrated reference cards+premium landyard with a detachable clip. Neutral 18% Grey / Gray Card For Better Photos.Gray card can balance all mixed lights to be 18% neutral gray. A 18% grey card not only have the use of measuring the camera exposure value, also be able to adjust color balance and revert the color truly and perfectly by controlling the gray balance in digital photography. Caution: Anwenk Grey Card Sold from Vinient Store. Purchase from other seller will not guarantee product quality and no refund/replacement service guarantee!