http://tinyurl.com/mlfs5qh

Wedgit Tan Maxi Twist Tight Adjustable Sliding Window & Door Lock extends from 25" to 42"

Requires absolutely no tools allowing for a super easy and quick installation

Easy to remove and store or use in another door

Prevents small children from going out and intruders from coming in

Compression tested to 450 pounds of pressure

Swings down out of the way when not in use