0.25/0.50 Round Optical for Cross Cylinder Lens Tool Set Diopters Optical Instruments Diopters Zinc Alloy Body Durable

Delicate lens for Optometry. 0.25 and 0.5 two diopters optional. 0.25/0.50 Round Optical for Cross Cylinder Lens Tool Set Diopters Optical Instruments Diopters Zinc Alloy Body Durable. brand new and high quality. Description: Features: brand new and high quality. Delicate lens for Optometry. 0.25 and 0.5 two diopters optional. Alloy handle with non-slip design. Specifications: Product: Cylinder. Material: Alloy and glass. Color: Silver. Overall length: 70mm/2.76". Lens dia: 36mm/1.18". Quantity: 1 piece. Note: Transition: 1cm=10mm=0.39inch. Please allow 0-5mm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!. Package includes: 1 pc Cylinder. No retail package