1. 700 grams heavy, no fatigue for long time use2. Four legs which are highly antiskid and beautiful3. Can be adjusted to a comfortable height according to individual height ranging from 66cm to 87cm (145cm - 180cm tall all can use)4. The length and width of the four feet are 20cm and 15cm (moderate spacing, suitable for stairs)5. High strength stainless steel and the thickness of the wall is 1.5 mm, strong and durable