120 days money back guaranteed! Full refund or replacement without return. Easy to install: No need any tool installation and joints without any gap. Compatible Model: Special design for Fitbit Alta HR and Alta, Tracker is NOT included. Personalized Your Fitbit Alta HR and Alta with LEEFOX multicolor wrist bands, makes your Fitbit Alta a totally new classic and pleasant look. Material: This new style replacement band is made of premium TPU material which is more durable than silicone.Eco-friendly, low-key, elegant and practical. New looks, vivid color and high quality make this new band very popular among fitbit fans. Size: Small size fits for 5.5"" - 6.7"" (140mm - 170mm) wrist Large size fits for 6.7"" - 8.1"" (170mm - 206mm) wrist Product Package (gift box) Size and Gross Weight: 1pack Small: 14.5cm*5.5cm*2cm. Weight: 24g Large: 14.5cm*5.5cm*2cm. Weight: 26g 3pack Small: 14.5cm*5.5cm*2cm. Weight: 47g Large: 14.5cm*5.5cm*2cm. Weight: 54g 5pack Small: 14.5cm*5.5cm*2cm. Weight: 65g Large: 14.5cm*5.5cm*2cm. Weight: 75g 10pack Small: 14.5cm*5.5cm*4.2cm. Weight: 130g Large: 14.5cm*5.5cm*4.2cm. Weight: 150g Customer service: 120 days money back guaranteed! Full refund or replacement without return. Please feel free to contact us if you meet any question BEFORE you review it. We will try our best to solve your problem. Satisfaction guaranteed! Notes: LEEFOX® is a registered trademark and brand in United States and protected by US Trademark Law. LEEFOX® never authorizes any other third-party to sell our products, and please directly buy from offcial store LEEFOX to get the authentic products in guarantee and protect your own interest.