Its hard to tell because it’s a bungee cord that’s attached to the vacuum cup going to a Velcro strap on my leg . You can increase the intensity or decrease I would say the least amount of pressure I feel would be the equivalent of two pounds and the most 7 lbs. I’m usually hang up to 18 lbs for a work out
I agree with DS on the Phallosan for all day stretching. I started with the SG and after receiving the PF, the SG has been collecting dust. It truly is an all day stretcher and can be used at night as well. I have noticed a difference in my flaccid hang especially after taking the PF off in the evening. It is an expensive piece but it is worth the money, IMHO