Skywalker Signature Series Y Type Chimney Mount with 18ft Steel Straps Designed for mounting TV antennas/dishes on existing chimneys  most commonly-used mount type on the market! When properly installed, a simple solution for homeowners of all kinds Safely & Securely mount with ease | Accommodates Masts with 1.5 Outer Diameter (sold separately) Steel Straps add extra stability to the chimney mount that most other mounting configurations lack Includes: (2) Y-Type brackets, (2) 18ft steel straps & bolts & clamps