Reliable & essential: mechanical emergency release for garage doors without separate access - allows manual opening of your garage door from outside in the event of a power cut Robust cable system: 2.5 m steel cable for a strong connection from the trolley to the door handle - durable & safe in use Easy installation: DIY-friendly with adapter plate & mounting hardware - quick installation on the door handle without major preparation Package includes: all mounting hardware for immediate use - ideal as an addition to Chamberlain garage door openers Chamberlain - Innovation & Quality: one of the world's leading manufacturers of gate and garage door automation since the 1960s - highest quality standards, innovative designs & outstanding customer service, focused on customer needs, Weight: 0.2866009406 Pounds, Manufacturer: Chamberlain