I'm experienced in masturbation, but this technique emerged when I recently bought a secondhand PC. The power unit lead came with a rubber strap about 3/4' wide to tidily hold the loose PC wires together. I don't normally use it but I found it the other day whilst rummaging in a cupboard.
It got me thinking that it might be nice to wrap it around my big fat cock. It has holes in it so it can be adjusted to different thicknesses. So I thought I'd give a try when wanking.
So I wrapped it around my cock and was pleasantly surprised to see that I could adjust it to go under my balls and around my cock together. I could also adjust it to make it tighter or looser, as it had adjustment holes every half an inch. As it was soft rubber, it could be stretched a little, so I could get anything from a loose to a tight fitting as required. So I had it on a 'snug' fitting and my cock was very engorged.
I then started to wank, using my edging technique. It was such a great feeling. It held my foreskin back tight against my balls, which was an incredible feeling. My cock had never been so red and hard. I was edging and wanking, then edging and wanking. I decided to increase the tightness, and my cock was very very engorged, almost sore. It was too tight so I loosened it a little.
After wanking for over an hour, the feeling of my cock being so hard and the tight feeling around my cock and balls sent me over the edge, so I just had to come. I quickly loosened the strap and came one of the biggest cums of my life. Spunk flew everywhere, which was great for a 53 year old man.
I'll do this again... when my wife is out shopping next!