This is the 12.5mm size that we are offering now called "The Rod". These sounds are extremely smooth, making them highly comfortable and simple to use. We will also be adding more sizes to our website to help add more options for this configuration.
The #18 and #30 are the only silicone that we have available in pure translucent. The #00-50 and #10 base color are a translucent white but can be mixed with all our standard color selections.