Ideal for indoor venting of electric clothes dryers where outside venting is impractical. Easy DIY installation. The lock system on the bucket allows for a secure tighter seal, and the installation ring allows it to be hung on the wall or wall stud close to the dryer. Collects lint waste. Kit includes plastic lint trap bucket, 2 plastic clamps, 4" x 5' length of UL approved ProFlex dryer transition duct, and a plastic mounting ring for installation. Indoor venting is not recommended for gas dryers due to potentially harmful fumes or exhaust.