1、Compact and Portable Design: This spherical prism for total station is small in size, compact in structure, and easy to carry, seamlessly complementing measuring instruments. 2、Robust Construction: Made of K9 glass and aluminum alloy, the prism is clear, efficient, and long lasting, capable of enduring the harshest conditions in the coming years. 3、Powerful Magnet Attachment: Equipped with a strong magnet, this prism can be used on metal bridges, railways, and other magnetic appearances with ease. 4、Versatile Mounting Options: Featuring a through hole on the magnetic base, this prism can be securely attached to concrete and wooden wall for added convenience. 5、Application: Ball prism for cooperating with total stations, provided with accuracy measurements, such as high speed rail, shipbuilding, railway, construction site measurements. Item Type: Total Station Spherical Prism Material: Aluminum Alloy, K9 Glass Prism Diameter: Approx. 25.4mm / 1in Ball Diameter: Approx. 38.1mm / 1.5in Magnetic Base Diameter: Approx. 35mm / 1.38in Application: Used for cooperating with total stations, accuracy measurements, such as high speed rail, shipbuilding, railway, construction site measurements. 1 x Total Station Spherical Prism Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store