Electromagnetic Wave Shield Mesh, Compatible Electromagnetic Wave: 40 dB Size: 39.4 inches (1,000 mm) x 33.3 ft (1 m) x 3.3 ft (1 m) EMF Shielding Room, Mobile Phone Electromagnetic Wave Countermeasure
Compatible electromagnetic wave: 40dB
Since this product is cut from the default of the item, you will not be able to cancel in principle. Please be aware of the wrong product number.