Compare one specification at a time
Use an example to separate published numbers from missing details.
Keep the measurement and the part together
The Bumble listing specifies 3.75 inches as insertable length. The Shane’s World listing gives 10.75 inches without identifying the measured section. Record the labels beside the numbers so you can see which comparison requires clarification.
Use photos to decide what to ask
A side view can show where a base widens, but a picture without a scale cannot establish its width. Ask for the widest insertable diameter and base width as separate figures for the exact option you selected.