The Yack stair climbers with wheels are intended for individuals with disabilities who need to navigate stairs in buildings without proper equipment. The control buttons are ergonomically placed on the handlebar. The body support frame of the machine is made of high-strength anodized aluminum, while the steering column is made of painted double structural steel. The covers are painted steel.

The N963 allows you to use the wheelchair normally on flat surfaces while keeping it hooked, and when you need to go up stairs, you just need to pull out the wheelchair's wheels. The option to disassemble it into multiple parts makes the machine extremely easy to transport.