Fit and sizing
What to measure and what a listing may leave out.
Find the measurement that matters
Look for inner opening diameter rather than the overall size. The housing, tabs, or contact arm can make the total measurement much larger. If a listing does not state the inner diameter, ask about it before ordering.
Check the design and instructions
Read the instructions for the exact model. The We-Vibe Pivot and We-Vibe Verge have different overall profiles and intended placement, even though both list ten modes.