Feature:1. Optical Glass Lens: The lens of this total station prism is made of optical glass, with fine cutting and polishing to ensure accurate measurement.2. Good Durability: The lens adopts oxidized plastic coating to ensure good wear resistance and impact resistance, extending their service life.3. L Shape Stand: The total station prism is equipped with L shape stand, standard 90 degree right angle to ensure stable and reliable measurement.4. Prism Specification: The effective diameter of this prism is 25.4mm, with 25mm constant, and suitable for Leica and other measuring instruments.5. Wide Application: Widely used for surveying tunnels, subways, mines, highways, railways, dams, steep slopes, etc., to meet various usage needs.Specification:Item Type: Total Station PrismMaterial: Optical Glass, PlasticSpecification: RainproofConstant: -25mmEffective Diameter: Approx. 25.4mm / 1inApplication: Surveying tunnels, subways, mines, highways, etc., suitable for Leica and other measuring instrumentsUse: Widely used in various industries such as subways, railways, tunnels, dams, steep slopes, etc..Package List:1 x Total Station Prism