Replacement Slim / Thick Strap Wristband for Jawbone Up Move Activity Tracker Special design for Jawbone Up Move Activity Tracker Stylish color to match your daily style - 5 Color available (Black/White/Purple/Yellow/Red) Thick and slim size availble - Thick size (band length: 220mm, band width: 15mm); Slim size (band length: 244mm, band width: 9mm) Ergonomic, durable, moderate softness, very comfortable to wear Strap Only, NO tracker or others