I know this idea is not new, but I thought I'ld share my device with you
I bought a jar lifter at eBay.com (I'm from Germany and I didn't find those here, at least not with those rollers)
Then I bought an pipe isolation made of foam, put some doublesided adhesive tape around each roll, cut the isolation and put the rolls in that.
There you go, a selfmade jelq device for under 15 Euros
!
I have some pictures attached.
[words=https://officialhydromaxpump.com/?uid=6&oid=2&affid=98 ]Bathmate[/words]

I bought a jar lifter at eBay.com (I'm from Germany and I didn't find those here, at least not with those rollers)
Then I bought an pipe isolation made of foam, put some doublesided adhesive tape around each roll, cut the isolation and put the rolls in that.
There you go, a selfmade jelq device for under 15 Euros

I have some pictures attached.
[words=https://officialhydromaxpump.com/?uid=6&oid=2&affid=98 ]Bathmate[/words]