This product has one function of powerful vibration that is intense enough to push you over the edge. The unique appeal of this product is that it can be used as a penis sleeve to enhance the girth of your penis or simply as a stroker. The tunnel is especially designed to give you maximum pleasure and the entry is easy for your penis to glide in. If you are looking for a versatile male sex toy. do not miss this one. Material: TPR Dimensions: Overall Length - 8.66 inches Overall Width - - 2.75 inches Overall Height - 3.15inches One Year Warranty.