Specially designed rubber bands for ensuring good net tension. Ordinary rubber bands deteriorate quickly when out in the elements, but these won't! Loop them around your existing loops in a lark's head knot (cow hitch) or loop them through your net's rings or tether lines then loop them through your poles.
Length (unstretched): 5", stretched to maximum, 10"
Band width: 1/4"
Band thickness: 1/8"