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There are 2 posts in First Aid

The Elmers 50ft harrow has the first 2 rows chrome tipped tines with Tine spacing 1-7/16", tine size 1/2" x 22", tine angle 45-90 degrees.

Sidebyside/atv cattle gaurds($1300), never have had anything try to cross these being raised and so long with large gaps its to much for a cows depth perception to try to even test them, 10ft long,