[DEFLECT AIR] Demonching from the ventilation of the air can guide the gas to flow in a specified direction. Avoid blowing cold/hot air directly to protect . The curved surface design can provide a buffer space for the air, making the air softer, close to the natural wind [Extended and contracted] Ventilation mouth deflection provides an adjustable length of 8-14 inches to that your width is appropriate [Save money] Use the air splitter to re -directed the warm and cold air under the bed, chairs or sofas to improve energy efficiency. Any warm or cooling room can save your money (magnets can be firmly installed in the deflection, so 't is worried that it will fall) [High-quality] The adjustable air decomposition agent is made of polycarbonate and super-strong magnets. It has carefully tested the high temperature of 293F by the manufacturer-CAN, the flame retardant and oxidation resistance to the lasting effective performance Quantity:4 Packs Colour:Transparent Material:Plastic Package Contents: 4 * Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.