The Ergo Grip Penis Pump from Size Matters is an incredibly easy to use enlargement device that delivers impressive and sizeable results This simplified pump promotes lengthening, thickening, increased stamina, and orgasms all in one This pump offers an ergonomically designed handle that fits in the hand just right, making pumping much easier and more satisfying. Equipped with a convenient easy-release button mid-cord, and complete with a snug fit comfort seal for added pleasure, the Ergo Grip provides unparalleled results and pleasure at the same time. The air lock release system on the cylinder makes the handle of this pump interchangeable with our wide selection of Size Matters pumping cylinders. Measurements: Cylinder has 9 inch internal length, 2 inch inner diameter at opening, Material: Acrylic, ABS, TPE, Color: Clear cylinder with Black handle