Specification Brand : Generic BulletPoint1 : Prism Dimension: 3mm/0.11 inch, 4mm/0.15 inch BulletPoint2 : 10 -15 Arc Second Beam Deviation BulletPoint3 : We offer customization services for copper coated, silver coated and aluminum coated. Product dimensions can also be customized according to your requirements BulletPoint4 : Color: Copper Coated BulletPoint5 : Light bulbs small screw base--it is lightweight for carrying easily, so the students can bring it outside to play with their friends,mini lamp Color : Copper Coated ExternallyAssignedProductIdentifier : 6958792512192 IncludedComponents : Prism ItemName : Super Mini Pyramid Prism Tiny Corner Cube Prism, Trihedral Retroreflector, Surveying Reflective Prism for Super Macro Precise Measurement Total Station GPS GNSS RTK, Silver Coated (3mm) ItemPackageDimensions_Height : 1.18 inches ItemPackageDimensions_Length : 5.91 inches ItemPackageDimensions_Width : 2.95 inches ItemPackageQuantity : 1 ItemTypeKeyword : science-lab-light-sources Manufacturer : ACCRSNCH Material : Glass ModelName : ZZGXWM ModelNumber : 120104WKKAY NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : Super Mini Corner Cube Prism PowerSourceType : AC ProductDescription : Super Mini Corner Cube Prism Angular Cone Prisms Optics K9 Glass for Super Macro Precise Measurement, Silver Coated Prism Dimension: 3mm/0.11 inch, 4mm/0.15 inch 10 -15 Arc Second Beam Deviation We offer customization services for copper coated, silver coated and aluminum coated. Product dimensions can also be customized according to your requirements