How the part fits? A 2-1/2” x 1-5/8” verticval 3 strand barb arm slides of over a 2-1/2” line post.
Where is it installed? A 2-1/2” x 1-5/8” vertical 3 strand barb arm is installed on all of your 2-1/2” line posts when your application requires barbwire. There will be a hole in the barb arm to slide your 1-5/8” top rail through. Typically, your vertical 3 strand barb arm will be placed facing outside and inside of your fence to provide more security.
How many do you need? You will need one, 2-1/2” x 1-5/8” vertical 3 strand barb arm per line post.