I purchased this new for my child, but it ended up not being used, so I am selling it. I opened the package only to confirm that it operates correctly (no problems ◎). Otherwise, it is like new. I believe the 3M tape provides reliable strength. There was no original instruction manual, so please refer to photo 2 for usage instructions. 【Product Description】 Safe and secure! This is a set of 2 multi-functional child locks that are easy to install. ☆ Prevents unexpected accidents ・ Prevents children from escaping their rooms or entering dangerous places when you're not looking. ・ Also helps prevent accidents caused by pet mischief. ☆ Versatile and suitable for various locations ・ Can be installed on various places such as doorknobs, drawers, and cupboards. ・ Widely applicable for safety measures in your home. ☆ Simple operation for excellent usability ・ Single structure, easy operation by pressing the button to open and close the lever. ・ Anyone can use it immediately. ☆ Easy to install and ready to use ・ No tools required, anyone can easily install it. ・ You can start safety measures immediately from the day it arrives. 【Color】 White 【Size】 70 x 35 x 50mm ※ There may be slight errors from the actual product due to amateur measurements. 【Quantity】 Set of 2