Bolt Studs
Dainty, delicate hardware - a little piece of readymade art for your ears, our Bolt Studs are now available in implant grade titanium for 24/7 waterproof, sweatproof, lifeproof wear.
Also as as a titanium flat back for cartilage piercings and our signature Bolt Nap Earrings.
SIZE & FIT
- Earring top: 3mm diameter
- Post gauge: 20g (standard piercing)
- Sphere backings — a secure, adjustable alternative to our flat-back styles
- Best for first or second lobe
MATERIALS & CARE
Materials: Medical-grade (ASTM F-136) titanium. Hypoallergenic and safe for sensitive skin.
Finish: Our jewelry is bonded with Titanium Nitride PVD. Titanium nitride is a hypoallergenic material that is more durable and resistant to wear than traditional gold plating. PVD coating is also more environmentally friendly than traditional plating.
Care: Waterproof and tarnish resistant. To maintain shine, polish with a soft cloth.
SHIPPING & RETURNS
- Free standard US shipping on orders over $150
- Easy returns and exchanges
Choose options
Frequently Asked Questions
Absolutely. Our jewelry is intentionally crafted for real life — from morning workouts to your evening wind-down. Our pieces are made to be worn continuously, so you can shower, sleep, exercise, and go about your day without taking your jewelry on and off.
Yes, our jewelry is intentionally made to be safe for sensitive skin. We take skin sensitivities very seriously, so we craft our jewelry in ASTM F-136 titanium (aka medical-grade titanium), the same material doctors trust for medical implants. It's naturally hypoallergenic, nickel-free, and safe for the most sensitive of ears.
PVD (Physical Vapor Deposition) is a modern plating process that creates a finish that's more durable than traditional gold plating. The result is jewelry that better withstands the rhythms of everyday life, helping its color stay beautiful through regular wear.
Absolutely — you don't have to take off your jewelry when you're working out or showering. Our titanium jewelry is waterproof, sweatproof, and made to keep up with your daily life. You can wear it all day and night, through workouts, showers, and the occasional nap. Or as we like to say, sweat, shower, sleep, repeat.
Titanium is remarkably strong for its weight, making it both durable and almost weightless. That means you can wear bold, sculptural earrings that feel surprisingly comfortable — often so comfortable you'll forget you're wearing them.
Most people wear our standard (6mm) backing comfortably. If your ears are thinner, or you find that your earrings are drooping, you may prefer a short (4mm) backing. If your piercings are newer or you have a fuller lobe, a long (8mm) backing may be a better fit. If you're unsure, just message our Customer Care team at hello@maisonmiru.com. We're always happy to help you find the right size.
Nap Earrings® use a secure push-pin flat back instead of a traditional butterfly backing. The flat back sits comfortably against your ear, while the pin gently bends to create a secure fit that stays in place through sleep, showers, and everyday wear. How to Insert Your Nap Earrings.
We take quality very seriously, and we craft our jewelry to last. We stand by our jewelry, and we offer a 365 Day Happiness Guarantee.
- MZMike Z.Verified BuyerReviewingBolt Studs GoldRated 5 out of 5 starsComfortable, Classic, Contemporary
Perfect for everyday wear. They’re lightweight, secure, and you can sleep in them without a second thought. They feel invisible, but still look polished and intentional.
- LRLindsey R.Verified BuyerReviewingBolt Studs SilverRated 5 out of 5 starsLove
These are comfortable and easy to take on and off - though I never really take them off. I lost the back to a previous pair of nap earrings never to be seen again. These backs are a bit easier to work with and I love they are titanium.
- LLACTVerified BuyerReviewingBolt StudsRated 5 out of 5 starsEasy, addictive and comfortable
Finally, my ears are not hurting. forty years old and I thought I was the wierdo because nothing felt good in my ears. Titanium (with the look of gold) to the rescue. Love these earrings - I'm just eyeing all the other earrings I want to add to mu collection, plus I now want another piercing just to make those future purchases worth it!
- RBRyanne B.Verified BuyerReviewingBolt StudsRated 5 out of 5 starsSo cute and. Edgy!
And they go with everything, especially my titanium hoops!