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

Product Features:

• Original Whoop strap .. compatible with Whoop 4 wristband.

• Easy to install.

• Strap length: 24 centimeters.

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

• Smooth and comfortable on the wrist.

• Durable and high-quality.

• Can be easily washed with water and soap.

Warranty: One year