Walker (mobility)

[5] In 2023, designs for the first open source walker were released after testing that could be digitally-replicated with a low-cost 3D printer, customized and reduced mass by 20%.

[6] The basic design consists of a lightweight frame that is about waist high, approximately 12 inches (30 cm) deep and slightly wider than the user.

The front two legs of the walker may or may not have wheels attached, depending on the strength and abilities of the person using it.

It can be used with two hands in front of the user, similar to a walker, and provides an increased level of support compared with a cane.

The hybrid is not designed to replace a walker which normally has four legs and provides four-way support using both hands.

The rollator consists of a frame with three or four large wheels, handlebars and a built-in seat, which allows the user to stop and rest when needed.

The handlebars are equipped with hand brakes that can be lifted or pushed downward to instantly stop the rollator.

[11] A Norwegian-made version of Wifalk's rollator won the 2011 Red Dot Design Award in the "Life science and medicine" class.

This type of walker provides support and stability to the dogs, while allowing them to rely partly on their hind legs and continue using them.