A butterfly clutch holds by friction alone. It loosens through a day of hair-brushing, jumpers, helmets and pillows, and once it is gone the post follows. A screw back threads on. It has to be turned to come off, which is exactly what you want on a child who is not thinking about her ears.

The flat disc sits flush behind the lobe. Nothing sticks out to catch or press in, which matters most in the weeks when a new piercing is still tender.

• A small motif. 3mm to 5mm sits comfortably on a child's lobe and is less likely to be knocked.
• A threaded back, not a push-on clutch.
• A post that fits the piercing she already has. These are 20 gauge (0.8mm) — the standard size a lobe is pierced at — so they go into an existing hole without forcing it. Posts are 7mm, or 5mm on the Lux styles, which sit closer against a smaller lobe.
• A stated material. Every product page here lists what the piece is made from — check it rather than trusting the word "hypoallergenic" on its own.
• A safety standard, on every style. All of them are made to ASTM F2923-20, the US standard specification for children's jewelry, which sets limits on lead, cadmium, nickel release and small parts. Each product page states it.

These are built to be left in. Swim practice, showers, PE, sleep — the pieces are designed to stay on rather than come out twice a day, which is what actually keeps a new piercing settled.

For game day there are team and sport styles, and matching sets if you want the necklace to go with them. Smaller ears often do better in huggies once the piercing has fully healed.

Cross and faith studs · Heart studs · Initial studs · Bow studs · Kids necklaces

If you are buying for a particular child rather than browsing: silver flat back studs are 55 styles and more than half of them are sold as children's, sports earrings cover eleven sports for a player, and pearl earrings start at a 3mm stud that suits a first piercing.

Lindsey wrote about taking her own daughter to get her ears pierced, and there is a plain explainer on what a flat back stud is if the terminology is new.

For the grown-up half of the same range, see hypoallergenic waterproof jewelry.

There is no single right age — families decide anywhere from infancy to the teens. The practical consideration is whether the child can leave the piercing alone and help keep it clean. Many parents wait until she asks for it herself, which makes the aftercare much easier to manage.

A small, lightweight stud with a secure back and a stated material. Avoid anything heavy, dangling or with an unknown metal content. Screw back flat backs are widely chosen for first piercings because the back cannot work loose and nothing protrudes behind the lobe to catch.

They are harder to lose, which is the main safety concern. A friction clutch can slip off through ordinary movement and end up on the floor; a threaded back has to be deliberately turned. There is also no loose clutch for a younger sibling to find.

ASTM F2923-20 is the US standard specification for children's jewelry. It sets limits on lead and cadmium content, nickel release, and small parts that could be swallowed. Every style in this collection is made to it, and each product page states it.

Yes. They are made to stay in through pools, showers and the ocean, which is easier on a settling piercing than taking earrings in and out. Rinse with fresh water after chlorine or saltwater and dry the ear, and the finish lasts much longer.

Yes, if her ears are healed. The post is 20 gauge — 0.8mm — which is the standard size ears are pierced at, so it goes into an existing hole without stretching it. Most styles are 7mm long, leaving room for a lobe that still swells; the Lux styles are 5mm for smaller ears.

They fit any healed lobe, a toddler's included. The post is 20 gauge, which is the size the piercing was made at, and on a very small lobe the 5mm Lux styles sit closer than the standard 7mm. A smaller motif is the other half of it — less for a hand, a hairbrush or a car seat strap to catch.

The back is why most parents of toddlers end up here rather than with push backs. A friction clutch comes off with a tug; a threaded back has to be turned. Putting one in is a two-hands job — hold the front still and turn the back clockwise until snug — and it gets quicker after a few times.

They are designed not to. Most reactions in children are to nickel rather than to the piercing itself, so the metal is the thing that matters. These are 316L surgical-grade stainless steel designed without nickel against the skin, and each product page lists that style's materials.