Tobfit Compatible for fitbit Alta/Alta HR bands for women men. Personalize your Alta/Alta HR watch bands to fits your mood and outfits in daily life ▶NOTE: Fitbit Alta/Alta HR/Ace Fitness Tracker are NOT included. Compatible Model: --The Bands for Fitbit Alta/Alta HR are Specifically Designed For Fitbit Alta/Alta HR/Ace Only. Wrist Size: --Fitbit Alta/Alta HR bands Small for 5.5-6.7 Inches (140-170mm) wrist circumference. --Fitbit Alta/Alta HR Bands Large for 6.7-8.1 Inches (177-206mm ) wrist circumference. Details & Features: ◆ Security Design: Updated Stainless steel watch lugs to ensure your fitbit Alta/Alta HR watch secure during strenuous exercise, very durable in everyday use. And the bands holder on the loop can hold the excess band in place. ◆ Premium Material: Compatible Fitbit Alta/Alta HR bands made of premium TPU, stands the test of time, features a combination of skin-friendly, waterproof, durable and scratch-resistant shining points. ◆ Multi-color Choices: We have more Popular colors ( Rose gold, Silver, Gold, Black, Gray, Teal, Pink, Lavender, Fuchsia) for Fitbit Alta/Alta HR watch bands. Share the Alta/Alta HR bands with your family and your friends. Warranty: We treat you just like we would want to be treated, we strive for Top Notch Service. --24-hour every day message reply --24-Month Warranty. No-Hassle replacement or refund during the warranty. --Please feel free to contact us if you meet any question BEFORE you review it. We will try our best to solve your problem. How to contact us: ☞ 1. Log in your amazon account > choose "Your orders" > find the order ID > click "Contact seller" ☞ 2. On this page, click on "Tobfit" next to "Sold by", then click on "Ask a question"