Hard Steel plug's smooth tapered shape is designed for easy insertion. Made from a solid piece of material with a generous base it is safe comfortable and easy to clean. The phthalate-free PVC is body safe and just the right balance of firm and flexible. The Hard Steel Large Plug is thicker with a girth of 1.75 in. and a narrower neck to keep it comfortably in place. The total height is 6.5 in.