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Michael L. I like the thick walls. Feels very sturdy. No problems. I am using it for the wrapped penis pump-and-release technique A 4" piece of Ace bandage is wrapped a couple of times on the base of the penis, glans visible. Pump and release for ten minutes to start and work up to twenty minutes. This to enhance penile circulation and vascularity. This will be a multi month process with one or two days off for healing and recovery between pumpings.