Patent Invisible Design - With the patent invisible flattened tail design, you can hide the ugly swaged end inside the wood post to get a neat appearance, and get enough tension to pass 4sphere test to meet code compliance. The customized socket wrench Muzata CT16 is essential for the invisible installation and keeps the cable from spinning when tightening. Package includes: 40 pairs of tensioners and terminals, 1pc allen wrench.Level&Angle Installation -Its suitable for 2"x2", 4"x4" metal and wood posts and applicable for both level and angled sections. 30 degree angled washer Muzata CR60 is needed for cable railing stair installationsMarine Grade - This cable railing hardware is made of T316 stainless steel, which has excellent resistance to rust, corrosion and extreme weather, ideal for indoor or outdoor, even coastal applicationsPre-Designed System -We pre-designed a WoodHidden cable railing system to help you construct a hidden wood system, which includescable railing kit CR26, angled beveled washer CR60, 1/8 wire rope WR02, adhesive sleeve CR66, protector sleeve CR13, drill guide CT19, crimper and cutter CT01, socket wrench CT16. (Please note that the package only contains 40pairs of tensioners and terminals CR26,1pc allen wrProducts from 's store