Designed for longer wearing and stretching. The urethra prince scepters, centre hollow, are made from best platinum grade silicone in soft. Not to hard and not to smooth, just perfect for longer wearing. Available in 3 different sizes and 3 different lenghts and of course in up to 12 different colors. Sizes M/L/XL only. The base plate prevents unintentional insertion into the urethra and the round olive prevents slip-out. The tip is conical rounded. The ball olive is placed beyond the glans muscle once inserted for perfect comfortable wearing. Have fun while testing, wearing and stretching. Centre hollow so possible to wear in every situation. The prince scepters are sterilizable and autoclaveable. SIZES: (A = Overall length B = Diameter shaft C = Diameter ball D = Diameter olive E = Diameter baseplate F = Diameter channel) Short Version: M = 64/7/10,5/9,5/17/3 L = 73/9/12,5/11,5/18/4 XL = 80/11/14,5/13,5/19/4 // Middle Version: M = 84/7/10,5/9,5/17/3 L = 93/9/12,5/11,5/18/4 XL = 100/11/14,5/13,5/19/4 // Long Version: M = 124/7/10,5/9,5/17/3 L = 133/9/12,5/11,5/18/4 XL = 140/11/14,5/13,5/19/4 // Extralong Version: M = 159/7/10,5/9,5/17/3 L = 168/9/12,5/11,5/18/4 XL = 180/11/14,5/13,5/19/4 ( 1mm = 0,04 inch )