Keep fresh air in & bugs out! Magnetized, fast-closing door; 36" x 84". Easy installation - no tools required. Fits single doors and sliding doors. Perfect for pets. Comes assorted in white & black. 12/case. ⚠ WARNING: This product can expose you to DEHP, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.