Sliding Door Security Bar 16.5" To 51" Sliding Door Lock Heavy Duty Sliding Product Features ?? Two in one ?: This sliding door security bar can be easily adjusted to an ideal width of 16.5 to 51 inch. It can be used as both a window security rod and a sliding door security bar. Suitable for various sliding windows and doors. ??Enhance Home Security ?: The sliding door lock prevent criminals from entering through sliding glass windows or courtyard doors. Window security bars prevent intruders from entering and protect children from curiosity when opening the door or window. ??Reliable and Sturdy?: The sliding glass door security bar adopts an alloy iron surface electrostatic coating, effectively avoiding rust. It feels smooth without burrs and is safe to use; In addition, the anti slip rubber at both ends enhances friction, making it easier to secure without damaging the window frame. ??Keep Your Windows Open but Safe?: Our window security bars placed in the middle of the window allows you to keep the window open, breathe fresh air, and ensure the safety of your family. ? BsBsBest provides after-sales support services for products. Please feel free to contact us for any product quality issues. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!