Description Specs Product Highlights: • Protects lens rear elements when not in use • Helps to keep dust from the lens interior • Premium grade high impact plastic; solid & durable • The lens cap fits all M42 lenses • Limited 2-Year Manufacturer Warranty This fine rear lens cap is a spare or replacement cap specifically made for all 42mm x1 (M42) screw mount lenses. The M42 rear lens cap is made of quality high impact plastic. The plastic cap protects the rear element and mount of the lens or adapter against scratches, moisture, dust, and fingerprints when the lens or adapter is not attached to the camera. The cap attaches securely by simply screwing onto the lens or adapter. Back to Highlights Material Premium Grade High Impact Plastic Product Dimensions 1.8 x 1.8 x 0.3 in (46 x 46 x 0.8 cm) @ 0.02 lb (0.3 oz) Shipping Dimensions 5 x 7.5 x 1.5 in (12.7 x 19.1 x 3.8 cm) @ 0.2 lb (3 oz) Manufacturer Fotodiox Inc. Warranty Limited 24-Months All pictures are for illustration purposes only. Actual product may vary slightly due to ongoing improvements in design.