Upper/lower mount are fabricated from .050" steel that has been Tig-welded to make connections strong and durable. T-bolt on upper mount is 1/4-20" thread for quick removal or installation. Upper and lower mounts are designed to mount to a flat plate with two 1/4" fasteners on a 2.00" bolt spread.
Brackets are sold in a pair upper/lower as shown in the pictures and are raw steel finish.
Air bottle shown in pictures is for picture purposes only.