Additional Details ------------------------------ Product description: Available only in: XS or S. Please tell us which size you'd like. XS (6.3 in or 16 cm) S (6.9 in or 17.5 cm) M (7.5 in or 19 cm) L (8.1 in or 20.5 cm) Active Energy effectively tunes the body, immediately unleashing its full potential for function and performance. 100% Surgical Grade Silicone wristband can go anywhere you do. This durable band was made to last! Features: Water Resistant Two Mylar Holograms 100% Surgical Grade Silicone Active Energy effectively tunes the body, immediately unleashing its full potential for function and performance. Some of the most notable results include: * Increased balance and strength * Enhanced flexibility and motion * Better focus and alertness * Relief of stress and tension * Faster recovery time * Reduced jet lag and motion sickness