SIZING GUIDE: Measure for the Perfect Fit. Women and teens usually wear MEDIUM, men typically LARGE. Be sure to measure your wrist and check our sizing chart to avoid ordering the wrong size. A loose fit is ideal to prevent breakage and the holograms don’t need skin contact to work. ENHANCE BALANCE & STRENGTH: Programmed hologram wristbands improve balance, strength, and flexibility by aligning with your body’s frequencies—ideal for workouts, daily activities, or seniors with balance needs. Watch the video to test your band! COMFORT & PERFORMANCE: Made from skin-friendly surgical-grade silicone, our balance bands improve strength, flexibility, and wellness. Perfect for Professional Athletes, Fitness Enthusiasts, Seniors, Team Sports, and anyone sinterested in optimal performance and improved well-being performance without irritation. HOW EFX WORKS: The EFX HOLOGRAMS are programmed with frequencies the body easily synchronizes with. When EFX is in close proximity with the body, the embedded frequencies resonate with the body's bioelectric field like a tuning fork. Users report real-time benefits in balance, strength, flexibility, and possibly vertigo and seasickness, and an overall sense of well-being. PERFECT FOR SENIORS AND ACTIVE USERS: Designed to enhance stability and balance, these EFX balance wristbands support seniors staying active and confident, and may help with vertigo and as sea sickness wristbands. Whether practicing yoga or hitting the gym, they’re the ideal accessory for yoga and sports. EFX Products contain Holograms. We “PROGRAM" our Holograms with frequencies that work well with the human body. We believe the body synchronizes with the Hologram's frequencies when they are within 1/2” - 3/4" of your body. Users report better balance, strength and flexibility.