【High Density Foam】Removable air conditioner drip cushion is constructed of quality high density foam with a soft texture and excellent sound absorbing properties , effectively reducing noise caused by dripping water . It minimizes noise disturbances at the source and maintains its shape even with long term use 【Noise Reduction and Soundproofing】Customizable air conditioner top pad is specifically designed to absorb the dripping noise from the unit's metal casing , effectively blocking out disruptive sounds to create a quiet living environment . It does not interfere with normal running or affect cooling and heating performance 【Customizable Size Design】AC rain cover features a 2 half piece jointed design that can be randomly trimmed with scissors according to your unit's size . A central ventilation opening is left open to ensure smooth airflow without compromising performance 【No Tool Installation】Installing and removing the AC drip cushion is extremely easy without any tools , simply put it directly on top of the outdoor unit to complete the installation . The process is fast , saving time and effort , and makes daily cleaning convenient 【Strong Magnetic Attachment】Foam air conditioner rain cover comes with a powerful magnetic backing that securely adheres to the metal surface of the unit . It stays firmly in position without fear of being blown off or shifting . Note : This only works on iron based surfaces ; it will not adhere effectively to non iron surfaces