Hi there,
Please note that our rollator has been upgraded with unlock levers as part of our annual product improvement.
This new design is intended to make folding the rollator easier and more convenient.
To fold the unit, simply press the levers located beneath both sides of the seat.
Here is the video for reference:
https://rolloy.com/cdn/shop/videos/c/vp/4860a6a56644420e9f1888e18f3a7ff4/4860a6a56644420e9f1888e18f3a7ff4.HD-1080p-7.2Mbps-71893336.mp4?v=0
Because of this upgraded design, the latest models do not include a seat strap, and no extra installation is required.
Thank you for your understanding.