Police Sunglasses. Series Blackbird Light 1. Series number: SPL356. Color code: K53B. Shape: Aviator. Lens Width: 53 mm. Lens Height: 45 mm. Lens Bridge: 19 mm. Arm Length: 145 mm. 100% UV protection. Frame Material: Metal. Frame Color: Gunmetal. Lenses Type: Blue. Rim Style: Full-Rim. UPC/EAN code: 883663943644. Police Blackbird Light 1 Blue Aviator Unisex Sunglasses SPL356 K53B 53.