$15 One Week Trial Pass (Unlimited Classes) Try Onyx Boxing for one full week for just $15. Your pass includes unlimited classes so you can train as much as you want, build confidence, and feel the Onyx energy firsthand. ✅ Unlimited Classes for 7 Days ✅ Great for beginners and experienced athletes ✅ Start your week anytime Pass expires 1 week from the date of your first class.