The Wedgit® adjustable Charley bar-style sliding glass door lock models work on nearly all sliding glass patio doors. The pivoting mounting system attaches tape or self-stick Velcro, allowing the Wedgit to be installed at a readily accessible height on a patio door frame. When not in use, it swings down out of the way for storage.
Wedgit Door and Window Lock
866-763-3338 or slidingpatiodoorlock.com