Frequently asked questions

Every ring is crafted in one of three materials: 925 sterling silver, brass, or stainless steel. All materials are independently lab-tested to EU REACH standards — free from harmful levels of nickel, lead, and cadmium.

Yes. Every ring is hypoallergenic and nickel-free per EU REACH testing. Customers with sensitive skin and nickel allergies wear them every day.

Spinning rings have an outer band that rotates freely with a flick of your finger — the most movement, the most satisfying spin.

Rotating rings turn with gentle resistance — a quieter, more controlled motion.

Adjustable rings have an open band you press to fit, about two sizes up or down. Set it once and leave it.

Anyone whose hands need a small motion to settle. Customers describe wearing them through long meetings, lectures, anxious moments, and end-of-day brain fog. Many mention ADHD, ADD, or just restless energy. The motion is silent and discreet — no one notices you're using it.

Every product page has a size guide. The simplest method at home: wrap a narrow strip of paper around the base of your finger, mark where it overlaps, measure the length in mm, and match it to our chart. Measure at the end of the day when your fingers are at their warmest.

Email hello@calmbyastrid.com with your order number and the size you need, and we'll help you get the right fit.

Our rings are designed for adult fingers, but our adjustable models work well for older children. For younger kids, the smallest fixed sizes (around size 6) may fit — measure first using the size guide on any product page.

Wipe your ring with a soft, dry cloth, and gently pull out any hair caught in the moving part. Keep spinner rings dry: soap, water and dirt wear the bearing and slow the spin. A stainless steel rotating or slider ring without stones can soak for a minute in warm water with a drop of mild dish soap while you turn the band. Rinse it, then dry it well.

Orders are usually dispatched within 24 hours and arrive in about 5–10 business days. You'll get a tracking link by email as soon as your order ships.

Shipping is free when you buy 2 or more items (free gifts don't count). For a single item, you'll see the shipping cost for your country at checkout before you pay.

When your order ships, we email you a tracking link. If you don't see it within 24 hours, check your spam folder — sometimes it gets filtered there.

Email hello@calmbyastrid.com as soon as you can. We start packing orders quickly, sometimes within a few hours, so we can't always change the address, but we'll do our best if your order hasn't left our warehouse yet.

First, check your spam folder. If it's not there, the email at checkout may have a typo — write to us with your name and approximate order time and we'll resend the confirmation to the right address.

Visa, Mastercard, Maestro, American Express, Apple Pay, Google Pay, Shop Pay, and Klarna. Available payment methods may vary slightly by region — you'll see what's available at checkout.

Wear your ring, and if it's not for you, email hello@calmbyastrid.com within 30 days of delivery, worn or not. We'll send you a free return label and refund the full price, shipping included. The details are in our money-back guarantee.

Email hello@calmbyastrid.com with your order number and the size you'd like, and we'll tell you how it works. The details are in our refund policy.

Yes. Email hello@calmbyastrid.com with your order number and the model you'd like, and we'll walk you through it.

Email hello@calmbyastrid.com with your order number and a quick description (a photo helps). We usually reply within 24 hours and will sort it out — refund, replacement, or exchange — whatever fits your situation.

Yes, 2 years. If a stone falls out, the band breaks in normal use or the moving part comes loose, email hello@calmbyastrid.com with your order number and a photo or short video, and we'll send you a new one for free. Normal wear isn't covered. The details are in our refund policy.