![EFX Performance Sport Wristband made of 100% Pure Silicone w/2 Programmed Holograms for Increased Balance, Strength & Flexibility | See Chart for Sizing - Checkers (Black/Blue)](http://efxusa.com/cdn/shop/files/checkers-blue_{width}x.jpg?v=1708125102)
![EFX Performance Sport Wristband made of 100% Pure Silicone w/2 Programmed Holograms for Increased Balance, Strength & Flexibility | See Chart for Sizing - Checkers (Black/Blue)](http://efxusa.com/cdn/shop/files/2EFXHowtoMeasuregraphic_1_1800x1800_d15307d1-931c-475e-b9f2-dd886d5e1dce_{width}x.png?v=1708125102)
![EFX Performance Sport Wristband made of 100% Pure Silicone w/2 Programmed Holograms for Increased Balance, Strength & Flexibility | See Chart for Sizing - Checkers (Black/Blue)](http://efxusa.com/cdn/shop/files/StocktonFBAd2wband18enero2024_1800x1800_54d9077d-6356-40e0-99fd-c9eda137f917_{width}x.png?v=1708125102)
![EFX Performance Sport Wristband made of 100% Pure Silicone w/2 Programmed Holograms for Increased Balance, Strength & Flexibility | See Chart for Sizing - Checkers (Black/Blue)](http://efxusa.com/cdn/shop/files/fb-benefits-01_1800x1800_ebf9b901-bb47-41c3-b00b-50fb5010d33c_{width}x.png?v=1708125102)
![EFX Performance Sport Wristband made of 100% Pure Silicone w/2 Programmed Holograms for Increased Balance, Strength & Flexibility | See Chart for Sizing - Checkers (Black/Blue)](http://efxusa.com/cdn/shop/files/EFXAROUNDTHELEAGUE1500X1500FORLISTINGS_1800x1800_9ad0f356-6f1f-4e43-aa63-aae90c3af1c5_{width}x.jpg?v=1708125102)
![EFX Performance Sport Wristband made of 100% Pure Silicone w/2 Programmed Holograms for Increased Balance, Strength & Flexibility | See Chart for Sizing - Checkers (Black/Blue)](http://efxusa.com/cdn/shop/files/6SENIORSREPORTAMAZONLISTINGFOTO_1800x1800_6bb114e8-5788-4500-99b9-995f1468ad8e_{width}x.jpg?v=1708125102)
![](https://cdn.shopify.com/s/files/1/0221/8006/files/press2.png?v=1714672240)
About this item:
- COMMON SIZING - Most children wear Smalls; Women mostly Mediums (some Large); Men mostly Large (some Mediums). IMPORTANT - See SIZE CHART.
- EFX’s HOLOGRAMS. We “PROGRAM" our Holograms with frequencies. We believe you synchronize with those frequencies when they are within 1/2” of your body. Users report better balance, strength and flexibility.
- EFX's PERFORMANCE WRISTBANDS appeal to consumers of all ages; Athletes, Fitness Enthusiasts & Seniors.
- EFX WORKS and our users report benefits in balance, strength, flexibility, and possibly vertigo and seasickness.
- WE REALLY WANT YOU TO BE SATISFIED, SO PLEASE watch our videos.