Anwenk Grey White Balance Card 18% Exposure Photography Custom Calibration Camera Checker for DSLR and Film

Neutral 18% gray card with a matte surface for scratch resistance. Non-reflective and waterproof.
Ideal for accurately setting white balance. Compatible with any digital camera. Suitable for DSLR, video, film, and photography.
Card size: 3 1/3 × 2 1/8 inches (8.5 × 5.4 cm). Small enough to fit in your pocket or attach to a keychain.
Compact, durable, and lightweight. Net weight: 35.5 grams.
Package includes three color-calibrated reference cards + a premium lanyard with a detachable clip.