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

Product Features:

- High-quality and stylish strap from 974Bands .. compatible with the Whoop 4.0 fitness device.

- Easy to install.

- The strap is soft and comfortable on the wrist.

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

Warranty: 1 year