Fitbit Blaze Smart Watch Band, Perman Soft Durable Silicone Watchband Replacement Wrist Strap for Fitbit Blaze White Material: Silicone. Compatible for: Fitbit Blaze Smart Watch. Maximum Length: 22cm/8.7". Minimum length: 15cm/5.9". Strap width: 2.3cm. Compression molding, sturdy and durable. Softness is moderate, wear very comfortable. The size can be adjusted according to the circumstance of individual wrist.