Fenss Safetydoor Stair Gate White

This sturdy metal stair gate is available in white, matte black, or titanium gray and is screwed to the wall. It's extra high and adjustable in width from 75.5 to 116 cm. It was also rated the best by the Consumers' Association (October 2018).
The Safetydoor stair gate is easy to open with one hand, and it also features an indicator that shows whether the gate is properly closed.