Features:
1)The wristband is ergonomically designed and made of safe and environmentally friendly TPE+TPU synthetic material. 

durable, soft and comfortable, and can be adjusted according to the condition of the individual wrist.
2)Small size fits for wrist at 5.5" - 7.1" circumstance. Large size fits for wrists at 6.5" -8.7" circumstance. Stainless Steel Buckle, easy to assemble and adjust, secure your watch during strenuous exercise.
3)The band is made of Premium soft Silicone, Agency certified non-toxic materials, Eco-friendly and safe for the human skin.It is waterproof, Anti-sweat, rainproof.
4)The silicone watch strap compatible with vivofit 4 tracker provides various color options, and different color combination, you could choose your favorites.
5)Teplacement silicone band strap compatible with Garmin vivofit 4 activity tracker only.

Description:
Weight: Large 0.012kg,Small 0.011kg,
Size: Large 250mm,Small 220mm,

Packing list:
1* Watch Strap For Garmin Vivofit 4

Note:
does not include the watch