Ameristep Step-Up Tree Step 8 Pack Black. Installation is easy and doesn't require any tools; the self-tapping 2-inch screw at the base of the Step-Up tree step easily screws into any weight-bearing tree. At an affordable price it's easy to make it from the ground into the trees for a tree stand hunt Specifications for Ameristep Step-Up 8 Pack Tree Step: Manufacturer: Ameristep Color: Black Width: 4 in Quantity: 8 Features of Ameristep Step-Up 8 Pack Tree Step 2-inch thread length Self-tapping screw-in point 4-inch step area Maximum weight capacity 750 pounds Package Contents: Ameristep Step-Up 8 Pack Tree Step Ameristep AMS-AMEAC0100: Step-Up Tree Step 8 Pack Black