Adhesive-backed sliding door locks for child/pet safety, two pieces in opened package. See Amazon link for details:
https://www.amazon.com/Sliding-Door-Lock-Home-Safety/dp/B0CG7FK2ZJ

We purchased this pack in April 2024, wanted to use them for our windows but the spacing was not wide enough for our windows to slide over the lock pieces when unlocked.

Available for front-step pickup near The Rotary (west end of Strawberry Lake Way in Odenton).

If interested, please indicate what day and timeframe you can pick up (examples: ”Thursday after 6pm” or “Sunday between 8-11 am” or “Monday before 12 noon”). Responses that do not include proposed pickup-day information will not be considered. Previous no-shows will not be considered.

sliding door locks (Piney Orchard)