The Suck N’ Stroke head pump is a short penis pump that focuses on the glans. The pump provides a sucking sensations and makes the glans swell up. The blood inside your penis is drawn towards the top, which makes your glans even more sensitive. The pump is easy to use and comes with three silicone cock rings with different sizes. You can use these rings to adjust the fit of the sleeve. The penis rings have a diameter of 3,4 and 5 cm.