Fixed Knot 16/180/15 – 500m RollEARLY BIRD SPECIAL 9 Week Pre Order Lock in this price now. Limited allocation at this rate once it's gone, it's gone. Fixed Knot 16 180 15 500m Roll This is the fence you put up once and don't touch again. The Fixed Knot 16 180 15 is a full height, heavy duty exclusion fence built for properties that need serious boundary protection whether you're keeping predators out, livestock in, or both. At 180 cm tall with 16 line wires and tight 15 cm vertical