Hello buyer, the tension value of this product is a vertical high tension value. In actual use

Due to differences in the thickness, iron content, force direction, and force area of the iron plate, the tensile force may be reduced

This is a normal phenomenon. The thicker the thickness of the object you are sucking and the higher the iron content, the closer it will be to the tensile strength we provide

Value, high vertical tension, low horizontal tension, do not take pictures if you mind!!! Thank you for your cooperation