Feature 1Durable Constraction: This mini prism system with side bubble is a metal prism assembly that is powder painted fluorescent orange and fluorescent yellow targets. 2Accurate Measurement: Surveying prism is accurately inspected with glass, which enhances the prismatic reflective ability, with full texture, clarity and brightness for more accurate and durable measurements. 3Fully Equipped: This 25.4mm diameter copper coated prism for fog prevention also features a tilting holder with friction axes, zero or 30 mm offset. The prism includes an S hook and bracket for handheld work, a point for stake outs. 4Easy to Carry: This survey prism is very light, and you can bring surveying prism anywhere without any hassle. This prism is small, durable and easy to store. 5Widely Used: Mini prism reflector has a wide range of applications. Widely used in tunnels, subways, mines, highways, and other inspections, suitable for Leica.SpecificationItem Type: Surveying PrismMaterial: Optical glass and aluminum alloyConstant: 0 or -30mmEffective Diameter: Approx.25.4mm / 1inScope of Application: Detection of tunnels, subways, mines, highways, and applicable for Leica .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Surveying Prism1 x U Shaped Frame1 x Adapter1 x S Hook1 x Cover1 x Storage Bag