This new series of prince\'s wands are fitted with movable rubber rings.The half-ring for the glans is sized very generously. The height is about 25mm wide and ca.30mm. This ring can also be individually half turn something so it fits well. There are 2 silicone rings supplied with 25 and 30mm internal diameter. Each ring is a few mm Stretchy! Total length 260mm. Front 5 pin 5-9mm increasing length 90mm. Midsection diameter 8mm. Rear section 50mm long, 7 and 9mm diameter. Weight 100 grams Material Medical stainless steel.