For drilled poles, installation is to realize with a bolt 14/16mm. The total length of the bolt must be at least equal with the pole's diameter + 20mm. For non-drilled poles, the bracket is to install with two pole bands 20mm secured with compatible buckles. We recommend you to use SB207 pole band together with B20 buckles. ●    Minimum tensile strength (with a 33° angle): 10 000N ●    Dimensions: 170 x 115mm ●    Eye diameter: 38mm