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How much does a Halo washer weigh?

Each Halo washer weighs approximately 100 grams (3.5 ounces) to allow for easy incremental loading during training. The Halo I has an inner diameter just larger than a penny. The Halo II offers a larger inner diameter and thinner profile for broader compatibility and improved stackability.

Can I use more than one Halo washer at the same time?

Yes! Halo washers are designed to stack for progressive resistance.

Is the Halo product legal for competition use?

No. Halo washers are for training use only and must be removed for official competition.

What material is the Halo made from?

High-grade stainless steel, offering strength, durability, and corrosion resistance.

How do I clean or maintain my Halo washer?

Wipe down with a dry or damp cloth after use. Avoid harsh chemicals to maintain the finish.

What is your return policy?

All sales are final. Please review your order carefully before purchasing. Exceptions may be considered for extraordinary cases—reach out to us with any concerns.

What if the Halo I does not fit my discus?

Halo products are designed for near-universal compatibility, but rare fit exceptions may occur due to discus model variations. Please contact us with any questions before purchase—we’re happy to assist.

How long will pre-orders take to ship?

Pre-orders for Halo II are expected to ship within 4–6 weeks, with updates sent via email.

Can I become a tester, innovator, or brand ambassador?

Yes! We are growing a community of innovative throwers. Contact us if you're interested. We are always looking for new ways to improve the sport.

Where is OpenRing based?

OpenRing is proudly based in the United States, founded by a former Division 1 athlete and throws coach passionate about advancing the sport.