This is an official factory thumb rest purpose-built for the Leica Q3 full-frame digital camera, a practical ergonomic upgrade for everyday handheld shooting. Precision machined from solid aluminum with a premium matte black anodized finish, it matches the Leica Q3 body perfectly in material and texture, preserving the camera's clean, iconic minimalist design. The contoured thumb piece locks securely into the camera's hot shoe, creating a natural resting point for your right thumb that greatly improves single-hand grip stability, reduces camera shake during manual operation, and eases hand fatigue during extended shooting sessions. This unit is in excellent condition, and comes complete with its original Leica retail box and protective foam insert. An ideal addition for any Q3 owner seeking better handling comfort while retaining a fully authentic, factory-original aesthetic.