The Original Big O® Key Ring is the first-ever bracelet keychain — invented in Dallas in 2012, patented, and loved by over 1,000,000 women worldwide. Unlike a traditional keychain that disappears at the bottom of your bag, the Big O® slips easily over your hand and rests comfortably on your wrist or forearm so your keys stay with you and your hands stay free.

What makes it different:
• Patented carabiner-style locking clasp that clicks audibly closed so you know it’s secure
• Oversized 4" diameter that slips easily over your hand and rests above your wrist
• Designed to sit above your wrist so it doesn’t compete with jewelry
• Durable materials — available in waterproof silicone, resin, or genuine leather

Named one of Oprah’s Favorite Things and trusted by over one million women, the Big O® has become an everyday essential for life on the go.

Running errands, chasing kids, heading to the gym, or skipping the purse for a quick outing — the Big O® keeps your keys close and your hands free for what matters.

The Big O® Key Ring is simple by design — and that is exactly the point.

Step 1 — Slide it on: The oversized 4 inch ring slips easily over your hand and rests comfortably on your wrist or forearm. One size fits virtually all.

Step 2 — Attach your keys to the split ring, then secure the split ring onto the locking clasp. Many customers keep each key on its own split ring for better organization.

Step 3 — Click it locked: The patented carabiner-style clasp clicks audibly closed so you know it is secure.

Step 4 — Go hands-free: Hold your child’s hand, carry your coffee, push the stroller, or run errands. Your keys stay with you while your hands stay completely free.

Step 5 — Valet mode: Remove the split ring holding your car key from the locking clasp in seconds when handing it to a valet. Your Big O® stays on your arm with everything else attached.

Build your hands-free system:

• Universal Phone Connector — turns any Big O® into a phone wristlet

• Mini Wallet or Card Case — keep your ID and cards within reach

• Mini Pouch — carry lip balm, AirPods, and small essentials

• Charms and add-ons — clip directly onto the locking clasp to customize your setup

Size: 4 inch outer diameter and 3 inch inner diameter.

Fit: Oversized by design so it slips easily over your hand and rests comfortably on your wrist or forearm. One size fits virtually all.

Closure: Patented carabiner-style locking clasp designed to click audibly closed and stay securely locked during everyday use.

Materials available include waterproof silicone, jewelry inspired resin, and genuine leather in croc, snake, ostrich, and smooth textures.

All Big O® Key Rings include the same patented locking clasp and are designed for daily use.

The Big O® Key Ring holds more than ten patents and has been featured on Oprah's Favorite Things, Good Morning America, Harper's Bazaar, ELLE, and Real Simple.

Our silicone and resin designs can be washed with mild soap and water, or can be cleaned with a damp cloth for a nice, squeaky clean feeling. If you have a silicone print, please take care not to use alcohol, hand sanitizer or antibacterial wipes as this will cause prints to fade.

Our leather designs can be wiped with a damp cloth.