Extra Element Performance, Power, Balance, Sport Band, Silicone Rubber Health Wristband, for Men or Women (BLACK) Extra Small Extra Element offers Elite Performance Gear so you can perform your best. SUPPORT ENHANCED ACTIVITY, MOOD, AND WELL BEING; Extra Element is the Leader in Performance Technology ERGONOMIC, COMFORTABLE, WATER PROOF & HYPO-ALLERGENIC; can be worn 24 hours a day for maximum performance and ultimate comfort. GAIN POWER FROM DURABLE, SURGICAL GRADE POLYMER INFUSED WITH VOLCANIC ASH; continually recharge your mind, body, and soul. 100% LIFETIME SATISFACTION GUARANTEED or your money back; Sizes XS - 7.67" (19.5cm), Small - 7.75" (19.7cm), Medium - 8.25" (21.2cm), Large - 9" (22.8cm), XL - 9.5" (24cm) Scroll to the top and click the yellow ADD TO CART button with confidence.