Leading landscape architects nationwide are specifying Duckbill anchors for more and more projects. They're the easiest, fastest, strongest, safest tree anchoring system available. They come complete with cable attached to each anchor. The 40 series, for use up to a 3" diameter, uses a DR2 drive rod.
Specs
40DB 1/16in. x 20in. cable size, a 7 x 7 strand of galvanized cable attached (7 main cables with 7 other strands wrapped around original 7), 300lbs. rating.
9.03
Duckbill Earth Anchor and Cable with 1/16 in x 20 in Cable Rating of 300 lb