Material: durable steel body; PVC plastic handle, sliding design; ABS plastic rollers; rotation 360 degrees, strong friction force. Size: small wheels, don't worry if you can bear the weight of the machine. wash and dry! Its compact design and heavy materials make these rollers particularly strong, can achieve amazing results. Load 210 lbs each wheel, four wheels equipped with 870 lbs load bearing, so you can rest assured, it is very suitable for children. for work! Design features: do not lift heavy furniture alone, it sought after help or hurt one's own problems. Use this furniture lifter and roller, you can easily slide furniture and heavy equipment from one place to another. the other, in order to reorganize the furniture, in order to better clean, they are unloaded or removed. It doesn't matter at all. No matter what floor you are on, you can easily move heavy furniture. Fits perfectly, making you feel pleasantly surprised. With one hand to lift heavy furniture. It can be easily assembled. without any tools. Easy lifting, positioning, adjustment of slides and adjustment and adjustment devices. furniture level. Applications: Suitable for a variety of applications. Heavy duty furniture round furniture and appliances can be used for sofas, cabinets, refrigerator, washing machine, bookcase, piano desk, and even living room furniture office!heavy wheel which makes them easy to move. slide on hardwood floors