The Dragon, $39.99. Dual ring, store IDs 1.25 in and 1.75 in, girth 4.0 to 6.75 in.
The problem this search actually is
You want ridges, not a smooth band.
What to buy
The Dragon ($39.99). A dual ring with external ridges. Store lists 1.25 in shaft ID, 1.75 in back ID, 2x stretch, girth 4.0 to 6.75 in.
Mammoth Force
The Dragon
Dual ring with external ridges. Store lists 1.25 in shaft ID and 1.75 in back ID.
4.6 from 15,000+ reviews
Free shipping over $50 • Discreet packaging • Ships from Huntington Beach, CA
What not to buy
A vibrating ring. This shop does not sell one.
If you are still comparing brands
The head-to-head pages live under vs . Alternatives to a named device live under alternatives . Measure before you order a ring: sizing guide .
Safety
The Mammoth, Dragon and Red Tiger product pages say thirty minutes maximum and never while sleeping. Remove at once on numbness, pain, coldness or a dark colour change.