Check the listing for details. Flir Series E4 E5 E6 E8 E9 ZnSe Macro Lens 20mm Holder Adjustment Tripod Holder. Condition: New. Listed at 45.00 USD. These are RESIN printed there awesome and work but look like injection molded real smooth and clean! If you would like the awesome FDM printed version for a few bucks less here is the Link: https://www.ebay.com/itm/143832927306 This is a set tools to get your E series cam working better for electronic inspection or other applicationsFlir Series E4 E5 E6 E8 E9 Lens Holder + Case - Lens Holder Has Been Upgrade to V2 Better Easier to Insert Remove!USB BraceLens Adjustment ToolTripod Holder NO TRIPOD You will need a 20mm Diameter Macro Lens choose your focal i use a 50.8mm 2 Inch seem good for electronics, some can be found on ebay item numbers:193274799948152310493227 You can search ZnSe Focus Lens 20mm diameter.There about 20 bucks Any questions just ask!