Molded out of polypropylene 14" long and comes with four screws for mounting hardware. It also has a 5% working lens and swivels up and down.
Installation:
This periscope has two different types of connecting hardware. The flat round pieces that are the same color as the periscope, we call round holder, are for if you are attaching it to a flat piece of wood. You put the round piece that is attached to the periscope that is a different color than periscope, we call this round mounting piece, on the wood. You then fit the two round holders around it and use the screws to screw into the wood. If you want to attach it to a 2 x 4 you use the rectangular pieces and put them on each side of the wood. Put the mounting piece into the round part that is cut out to fit it and screw it in.