A flatback stud shaped like an eight-point compass star.
- F-136 implant-grade titanium
- 18k gold PVD plating
- 1.2mm gauge (16g)
- Internally threaded - twist the front charm onto the flatback post
- Flat disc back sits flush against the ear for sleep-proof, 24/7 comfort wear
- Suitable for healed cartilage piercings
Please note: 1.2mm is a standard cartilage gauge and may be too thick for most lobe piercings, which are typically pierced at 0.8mm or 1.0mm.
Free UK delivery -Enjoy complimentary 24hr delivery on orders over £45
Same day dispatch -Order before 2pm GMT on weekdays for same day dispatch on next day deliveries
Implantium™ is Smoothie London’s standard for jewellery that works as hard as you do:
- Implant-grade titanium: the same quality trusted for medical implants, meaning it’s 100% hypoallergenic and safe for sensitive ears.
- Waterproof & tarnish-proof: wear it in the shower, at the gym, or on holiday without a second thought.
- No-poke comfort: our flatback design means you can sleep, train, and live in them 24/7 without irritation.
Where most brands settle for stainless steel or mystery alloys, we raised the bar and created Implantium™: a new benchmark for jewellery that’s stylish, safe, and designed for everyday life.
8mm - Standard for lobes and most fresh piercings.
6mm - Snug fit for thinner cartilage placements (helix, tragus, flat). If your piercing is fully healed and you want a flush look, choose 6mm.
For more custom sizing recommendations, use our chat above.
Premium quality
100%
Bio-compatible material
21,000+
Stacks built
1500+
5-star reviews
Implantium™ difference
Why our flatbacks?
Our Implantium™ titanium is the same grade used in medical implants: hypoallergenic, waterproof, and built for 24/7 wear.