"With this ring, it allows me to be stylish and funky with the patterns. The colour and texture is versatile. Easy to put on change anytime. A good addition to change."
"Great quality and feel. I have peace of mind it won't get scratched up when I'm working out at the gym. Thank you!"
Built to break safely.
Medical-grade silicone — engineered for the worksite, the gym, the rope-pull, the rock face. Non-conductive. Designed to release under tension before your finger does.
Almost weightless
You'll forget you're wearing it. Made from medical-grade flexible silicone that conforms to your finger and stays comfortable for 12-hour shifts.
Ring-avulsion safe
Engineered to tear at roughly 25kg of pull-force — well below what it takes to degglove a finger. Tradies, electricians, climbers, lifters: this is the ring you wear when the metal one comes off. Non-conductive, too.
Days warranty
Silicone doesn't last a lifetime and we won't pretend it does. 30-day replacement warranty on tears, splits, or manufacturing defects. After that, swap it for a fresh one — they're built to be replaceable.
Every ring arrives ready.
- Branded pouchSlim Helix pouch — toss it in the gym bag or glovebox.
- Online fit guideSilicone is flexible — measure at home with a string or paper strip, our guide walks you through it in two minutes.
- 30-day warrantyTears, splits, or defects in the first 30 days — we replace it, no questions.
- Free exchange*Free swap on rings over $99 ($10 fee under $99). Tracked Australia Post on dispatch.
Not sure of your size?
Silicone is flexible — but the right size makes a real difference for comfort. Three ways to check before you order.
The details.
The Hollow Square Black silicone ring combines a bold squared profile with hollow construction in an all-black finish, clean, tough, and purpose-built for active men. Made from medical-grade silicone, it is sweat-proof, waterproof, and non-conductive, safe for the gym, tools, or water. The angular exterior gives a strong, industrial look while hollow channels reduce overall weight. Silicone rings break away under extreme pressure, protecting your finger in situations where a metal ring could become dangerous. The most versatile option in the Hollow Square range.
What 2 owners actually say.
Average rating 5.0 / 5 across 2 verified reviews.
Customer Reviews
Ring size guide.
Measure the inside diameter of a ring that already fits. Print the chart 100% scale or use a tape to check inner circumference.
| AU / UK | US | Diameter (mm) | Circumference (mm) |
|---|---|---|---|
| G | 3½ | 14.1 | 44.2 |
| H | 4 | 14.5 | 45.5 |
| I | 4½ | 14.9 | 46.8 |
| J | 5 | 15.3 | 48.0 |
| K | 5½ | 15.7 | 49.3 |
| L | 6 | 16.1 | 50.6 |
| M | 6½ | 16.5 | 51.9 |
| N | 7 | 16.9 | 53.1 |
| O | 7½ | 17.3 | 54.4 |
| P | 8 | 17.7 | 55.7 |
| Q | 8½ | 18.2 | 57.0 |
| R | 9 | 18.6 | 58.3 |
| S | 9½ | 19.0 | 59.5 |
| T | 10 | 19.4 | 60.8 |
| U | 10½ | 19.8 | 62.1 |
| V | 11 | 20.2 | 63.4 |
| W | 11½ | 20.6 | 64.6 |
| X | 12 | 21.0 | 65.9 |
| Y | 12½ | 21.4 | 67.2 |
| Z | 13 | 21.8 | 68.5 |