One size. Nothing to measure.
One size. A 0.8 mm post with a push-on sensor back fits any standard lobe piercing — no sizing kit, no waiting. Every finish, every lobe, day one.
- Drop
- 12 mm
- Post
- 0.8 mm (20 gauge)
- Weight
- 2.1 g
- Sizes
- One
- 01
Post through
The 0.8 mm post is the same gauge as a standard stud. Slide it through from the front, hook hanging down.
- 02
Sensor back on
Push the clear sensor back onto the post behind the lobe until it clicks. Its optical window sits flat against the skin.
- 03
Forget it
At 2.1 g it is lighter than most studs. Sleep in it, shower in it, train in it. Charge it on a Sunday.
Hook in front, sensor behind.
The sensor back reads through the lobe from where an earring back sits anyway. Wear it on whichever ear you do not sleep on.

One size
A 0.8 mm (20 gauge) post with a push-on sensor back. It fits any standard lobe piercing — there is nothing to measure and no kit to wait for. The hook drops 12 mm below the piercing.
Either ear
Both lobes give the same signal. The sculpted hook hangs in front of the lobe; the clear sensor back sits behind it with its optical window against the skin.
Sleep on it
At 2.1 g it weighs less than most studs. The sensor back is a smooth 3 mm pill, no sharper than a butterfly back, so side sleepers barely notice it.