In body safe silicone, these are lightweight and flexible. One is longer and beaded, and the other smooth and gradually tapered, offering lots of options in terms of width and penetration depth (ie. stretching/stimulating potential). 

Always follow a meticulous cleansing routine before and after using one of these (or any) urethral penetration device. 

Approximate sizing 

• Beaded - 6.10"/15.5cm long, 5.70"/14.5cm insertable, .216"/.55cm in largest diameter
• Smooth - 3.937"/10cm long, 3.74"/9.5cm insertable, .314"/.8cm in diameter