In English, this device is called a Walker (or sometimes a Walking Frame). ​It provides a wide base of support for people who have issues with balance or decreased leg strength, helping them move safely and independently. ​1. Main Types of Walkers: ​Standard Walker: Has no wheels. The user must lift it slightly and move it forward with each step. It is the most stable type but requires more effort. ​Two-Wheeled Walker: Has wheels on the two front legs. It allows the user to slide the walker forward without lifting it, which is easier for people with limited arm strength. ​Rollator (Four-Wheeled Walker): Features four wheels, hand brakes, and often a built-in seat. This is great for people who need to take frequent breaks while walking. ​2. How to Use It Correctly: ​Adjust the Height: Stand straight inside the walker. The handles should be at the level of your wrists. When you grip the handles, your elbows should be slightly bent (about 15^{\circ} to 30^{\circ}). ​Walking Sequence: * Push or lift the walker a few inches forward. ​Step forward with your weaker or injured leg first. ​Then, step forward with your stronger leg. ​Look Ahead: Keep your head up and look forward, not down at your feet, to maintain better balance. ​3. Safety Precautions: ​Check the Rubber Tips: Ensure the rubber caps on the bottom of the legs are not worn out; they are essential for preventing slips. ​Clear the Floor: Remove loose rugs, mats, or electrical cords from the walking path to prevent tripping. ​Sitting Down: Never use the walker to pull yourself up from a chair or use it for support while sitting down, as it might tip over. Always use the armrests of the chair for stability.