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![EFX Performance Sport Wristband made of 100% Pure Silicone w/2 Programmed Holograms for Increased Balance, Strength & Flexibility | See Chart for Sizing - Glow In The Dark (Blue)](http://efxusa.com/cdn/shop/files/2EFXHowtoMeasuregraphic_1_1800x1800_35f0861b-7349-46c6-a551-d9a4efb22bad_{width}x.png?v=1708121119)
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![EFX Performance Sport Wristband made of 100% Pure Silicone w/2 Programmed Holograms for Increased Balance, Strength & Flexibility | See Chart for Sizing - Glow In The Dark (Blue)](http://efxusa.com/cdn/shop/files/fb-benefits-01_1800x1800_fc241601-eb9f-4e69-901d-c82dc9c98bb9_{width}x.png?v=1708121264)
![EFX Performance Sport Wristband made of 100% Pure Silicone w/2 Programmed Holograms for Increased Balance, Strength & Flexibility | See Chart for Sizing - Glow In The Dark (Blue)](http://efxusa.com/cdn/shop/files/EFXAROUNDTHELEAGUE1500X1500FORLISTINGS_1800x1800_2d73bd1a-09b8-4943-8730-1a73ad65a37d_{width}x.jpg?v=1708121309)
![EFX Performance Sport Wristband made of 100% Pure Silicone w/2 Programmed Holograms for Increased Balance, Strength & Flexibility | See Chart for Sizing - Glow In The Dark (Blue)](http://efxusa.com/cdn/shop/files/6SENIORSREPORTAMAZONLISTINGFOTO_1800x1800_229e1167-519a-4f6f-ad60-2d923a51a0c5_{width}x.jpg?v=1708121355)
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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.