Titanium Ball Stud 4 mm, photographed as a single piece

Sealed for hygiene — cannot be returned once opened

This piece goes through a piercing, so it is sent in a sealed pack with a tamper-evident seal. Once that seal is broken it cannot be returned for hygiene and health reasons. Unopened, it still carries the full 14-day right to cancel. Faults and wrong items are always put right. Read the returns policy.

Lobe studs

Titanium Ball Stud 4 mm

Name: Titanium Ball Stud 4 mm
Brand: Lobe
Price: 49.00 GBP
Availability: InStock

The 4 mm ball on the same 0.8 mm titanium post and screw-back, 0.5 g per piece.

£49.00inc. VAT · delivery from £3.95

What actually touches you

The specification of the part in contact with your ear.

Post material: Titanium, ASTM F-136 grade
Nickel release: ≤ 0.2 µg/cm²/week (piercing limit)Tested to BS EN 1811
Post diameter: 0.8 mmA piercing heals around a diameter. Going up a gauge hurts.
Post length: 8.0 mm
Back type: Screw-backThreads onto a matching post. Cannot slide off if knocked, but only fits a post cut with a thread.
Weight, one piece: 0.5 gWeighed singly, because one lobe carries one earring.

Positions it is sized for

Suitable during healingYesRecorded as suitable on the basis of its material and construction.

We do not give medical advice. Questions about piercing, healing or aftercare belong with a professional piercer or a healthcare professional. Everything on this page describes materials and construction only.

Nickel and reactions

Nickel-safe — tested to UK REACH limits (BS EN 1811).

Meeting the nickel release limit is not a promise that nobody will react. Some people react to other metals or materials — cobalt, chromium, resins and platings among them. If your ears are sensitive, wear a new piece for a short period first and see how it settles.

How we test, and what the limits do and do not mean

Metal and hallmark

Purity: Titanium ASTM F-136
Weight, one piece: 0.5 g
Plating: None — solid throughout
Hallmark: Not required

Not a precious metal — hallmarking does not apply. The purity stated is still exactly what the piece is.

How to read a UK hallmark

Which position is this for?

LobeSecond lobe

Single piece or a pair?

Every specification on this page is for one piece. Pieces are sold singly so you can build across more than one piercing.

A pairLeft ear onlyRight ear only

Delivery. UK standard £3.95, tracked £5.95. Free UK delivery over £60. Europe and worldwide tracked. Details

Returns. 14 days from delivery while the hygiene seal is intact. Once opened, this piece cannot be returned. Policy

In detail

Identical contact surface to the 3 mm version — a 0.8 mm ASTM F-136 titanium shaft, 8 mm long, screw-back fastening. Only the visible ball is larger, which adds 0.1 g per piece. Choose this one if you want the front to read from a distance without changing what sits inside the piercing.