Each plastic cover is machined with internal threads to hold the objective or optical components. The lid has a large convex ridge on the outside to reduce the possibility of damage or breakage caused by rolling when the container is placed sideways. The maximum allowable mounting length of an objective lens is from the shoulder to the top of the objective lens, excluding the threaded portion

the package comes with 4 objective boxes. The lid has SM internal threads for mounting components. We offer two box body sizes for objectives up to 52.0mm (2.1 in.) from shoulder to top. Our objective case is ideal for storing and transporting objective lenses with RMS (WJ4/5"X1/36" (Japanese JIS standard), threads. KRPIAXY provides objective boxes to protect microscope objectives.

Brand: KRPIAXY. Item Dimensions LxWxH: 1.4 x 1.4 x 2.37 inches. Color: BLACK. Material: Plastic. Country of Origin: China. Manufacturer: KRPIAXY. Date First Available: January 12, 2022. Best Sellers Rank: #49 in Microscope Lenses. : B09Q262197. Item Weight: 3.84 ounces. Product Dimensions: 1.4 x 1.4 x 2.37 inches.