This model is 330mm long, allowing 320mm for insertion. The Bead Ball starts with a 10mm (30 French) ball tip that is about 9mm long. Then it goes to the first valley, which is about 7.5mm in diameter (21French) and 22mm long. It basically repeats this 8 times until the retention valley then sinks down to 7mm, and then the piece flanges out to 13.3mm.
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.