the wristband is made of silicone, it's harmless to human body, no allergic reaction. All of the photos are taken from the actual item and color is correct as described.
The band Size: Small 5.5""-C6.7"" 140 mm -170 mm; Large 6.7""-8.1"" 170 mm-206 mm
Maybe they look a slightly different due to different light brightness or pixels of your computer screen.
Only the replacement band, no tracker device or other parts.
NOTE:ONLY for Fitbit Alta HR and Alta Bands , Not for other models.
Silicone material well made, durable, soft and comfortable, fit Fitbit alta
Watch buckle / Clasp will secure your fitbit alta from falling or loosing, save your equipment
Size can be flexibly adjusted, Size: Small 5.5""-C6.7"" 140 mm -170 mm; Large 6.7""-8.1"" 170 mm-206 mm
New colors for your choice, to replace diverse, so you have a good mood every day
Note: Fitbit Alta tracker or other parts are not included in the product