After market replacement pendulum for Warmink small Dutch friesian stoel clock, made after the original Warmink pendulum. It has the hook to hook up to the “bril” in the case. Crotch for the escape. Measurements are; 11″ or 28 cm long. Crotch starts at 2″ or 5 cm and is 2″ or 5 cm long. The lens is 3 1/8″ or 8 cm wide.