Looking for the following part

This mounts inside the top channel of our sliding glass door. This prevents a child from open a sliding door to the backyard which has a pool. We have a second handle on the sliding door which we have to pull down to release the catch on top of the sliding door to fully open.

The dimensions are 3 inches long, 2 1/8 inches tall and 5/8 inches thick. It is actually 2 pieces as you can see in the picture. At a minimum we need the piece at the bottom with the latch.

Thanks,

- Brent