Silicone is suited very well for this type of toy because it can be sterilized safely without compromising its integrity. The sounds are also a great testament to the integrity of silicone as a material for my toys.
Silicone can be autoclaved or processed in a pressure cooker safely without melting the product. Originally inspired by a good friend of mine, Dan, who one day showed me his collection of jelly type fishing lures he was using for urethral play. Not knowing what they were made of and realizing they were most likely not sterile I set myself on a quest to develop some type of safe silicone toy for him. There were no silicone sounds on the market at the time, and so in 2000 the first set was produced at SquarePegToys®.
In 2002, the design was improved with gentle entry rounded tips, and a generous length of 15″ to incorporate 2 size diameters into one. Note in the center image that the diameter increases by approximately 1/16″. Thanks to all the feedback I received on that original set of sounds, these latest models will hopefully be everything you could ever wish for.
Improvements include: tapered tips, increased length, and finer calibration. The original set had only 4 different sizes, this set includes 16. Insertable length is now a full 15″. Each rod is made up of 2 different sizes, the smaller of which is from the tip to mid-point, then a slight taper up to the next increment which is held all the way to the base. Each rod is marked with its sizes on the square base.
Because the prototypes were machined in inches and the French system of measuring Sounds is based on metric, there wasn’t a clean conversion. Each size in the rod differs by about 2.5 French and hence, the reason for the odd pairing of numbers in the final product. The final sizes are very close to actual but, regardless, because of the flexible nature of rubber, these numbers are best viewed as guidelines and close estimates.
Quick Conversion Guide:
1/4″ diam appx 20 french
5/16″ diam appx 25 french
3/8″ diam appx 30 french
7/16″ diam appx 35 french
1/2″ diam appx 40 french