Note: This's an official strap only .. does not include the Whoop 4.0 fitness device. 

Product Features:

- Original Whoop band, compatible with Whoop 4.

- Easy installation, and if you need guidance, we have included a video in the images.

- The band is 24 centimeters long.

- The side frame is made of high-quality steel.

- Strong and high-quality construction.

- The band itself is smooth and comfortable on the wrist.

- Can be easily cleaned with water and soap.

Warranty: One Year