1.Specially Tailored --- Only Compatiable with Fitbit Ionic Smart Watch Fitness(Watch is not included)

2.Size Range --- Available in Large size: Large size for 6.7"-8.1"(170mm-205mm) wrist

3.Exquisite Craftmanship --- Durable and flexible Soft TPU Material with strong waterproof and sweat resistant, comfortable to wear in your daily life, eco-friendly and safe for human skin

4.Safety Design --- Stainless Steel Buckle and metal clasp, easy to fasten and resize, secure your Fitbit Ionic Smart watch during exercises