Clinical studies have proven that vacuum erection devices will give instantly harder erections, cause temporary flacid enlargement and can increase permanent penis augmentation. According to the American Urological Association, these devices may also be useful in cases where such PDE5 drugs as Viagra have failed to work! Doctors view the penis pump as a safe, effectual and cost effective treatment for erectile dysfunction and state that the prolonged use of these devices will enhance the size of the penis permanently. Other advantages of the PUMPED selection are, amongst others, delayed ejaculation, improvement of sexual appetite, boosting of testosterone, the maintenance of longer and harder erections and the supporting of penile tissue after prostate surgery. PUMPED, for instant results! If you own a penis pump without a gauge, think about upgrading to a pump with a gauge for more control. It will add considerably being able to establish a routine that is more consistent from session to session. This makes it more likely to avoid pumping at a higher vacuum level than you might have intended. Increase the vacuum level a little at a time, but never too much! (this is where the gauge would come in handy). You cannot rely on a sense of 'stretch' to know how much vacuum you have applied. Pain or discomfort is not a reliable sign that you're overdoing it. This can happen well before that! With a total cylinder length of 20cm (7.9") and an inner diameter of 6cm (2.35"), this high-quality pump gives you ample possibilities to grow in both directions! The total length of the hose is 25cm (10") and the insertion sleeve is made of smooth Silicone. Surprise yourself on how big you can get! This variant comes with a finger grip pump, a cylinder with gauge and a quick release valve for your comfort.