Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Bird Mounting Spring by PERRIN Sale $1.80 | / SKU 71-725 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Notify me when back in stock Email address Email me when available Bird Mounting Spring a German made Regula bird mounting spring for Cuckoo Clocks.