A larger model from Aneros, the Progasm is a 'next-step' toy for more experienced players. The Prograsm works in harmony with your body’s own movements, stimulating both the prostate and the perineum in a rhythmic motion that builds up to unprecedented orgasms. The Progasm provides additional sensations throughout the anal canal while still employing the same famous patented mechanism which causes Aneros toys to pivot inside the body, rhythmically stroking the prostate. The perineum tab provides an external prostate massage through the perineum. Made a firm, solid FDA approved plastic. 4.75" (12.1 cm) in length, 1.3" (3.3 cm) in diameter at the widest section.