I have used zip ties, knots and tape. these may cost a little more but are reusable. I think I picked up a bag of 10 for $6-$7. use the same size pipe as the support pipe for the net. cut out 1/3 to just under 1/2 of the fitting with a saw. if you cut out to much it wont work right. cut out to little and its hard to get on. if placed on the net right you can just twist the coupling to tighten the net.