60 mm at the head and 64 immediately below it, which makes the first part the widest part by some margin — it narrows to 46 through the middle. A demanding entry followed by an easier length. Green silicone. The measurements are the thing to check before buying, not the styling.
A little water-based lubricant goes a long way, and it will not harm the silicone.
Mild soap, warm water, and a proper dry are the whole of its upkeep.

































