Im mainly useing the Zen cups but also love the Edge ones. With in 2 days of working my rib cage and hips... wow, great results! I highly recommend useing these Cupping products. Wish I had started with these years ago. Very easy to use. I like to give myself a selfcare treatment while I watch TV. Besides lessening my pain issues, this process keeps my hand busy so I do not raid the kitchen with my evening TV watching.