Indoor dryer vent filter will rate to trap fine lint and dust particles, and can be vacuumed clean or replaced when fully loaded with lint. Polyester Lint Trap is well-made polyester from and high-grade and reusable ensures long term performance optimize the cleaning process and prolong . Dryer vent filters size are 7x 0.75x 8.25Inch Vacuumed sealed for air tight space saving. (can be cut according to the size of your dryer vent), fits most of these indoor vent dryers.No more headache looking for specific filters as this is the right one. Colour:Blue Material:sponge Package Contents: 12 * Dryer Vent Filters Replacement 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.