Description: Features: Well ultraviolet resistance and aging resistance Through ISO14000, SGS and RoHS certification Well transparency: ≥94% Low distortion factor: ≤016% Specifications: Material: Acrylic / Polycarbonate Color: transparent Size: Outer Diameter: Approx99mm Height: Approx45mm Width of edge: Approx10-12mm Max Inner Diameter of hemisphere: Approx80mm Diameter of locating hole: Approx3mm Center distance of locating hole?Approx62mm / 88mm Note: Please allow 1-2mm error due to manual measurement Pls make sure you do not mind before you bidThank you! Package included: > 1 x 315 Inch Camera Cover / in a pack