Part Number:NTKHM310 Package Dimensions:16.4 x 10.1 x 1.7 cm; 270 Grams Item Package Quantity:1 Batteries included?:No Batteries Required?:NoItem Weight:270 g ?4PCS Kids Window Door Locks?This is A Kind of Sliding Patio Door Catches Set Window Bolt Security Lock, Avoid Accidental Opening of the Window, Extra Security for Your Child and Window, Suggested that Locks are Fitted Top and Bottom for Maximum Security, Home Secure System Upgraded ?8 Universal Keys?Supplied with Universal 8 keys, Have 4PCS Sliding Door Locks, Each Sliding Door Locks Comes With 2 keys, The Keys are Universal ?Easy Installation?Easy to Install the Locks and Convenient to Use, Supplied with All the Security Fixing Accessories, Include Caps Stainless Steel Screws ?Application?Suitable for Most Hinged or Sliding Doors and Window, This Design is Very Useful for Home, Schools and other Children's Places International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. See more product details ?4PCS Kids Window Door Locks?This is A Kind of Sliding Patio Door Catches Set Window Bolt Security Lock, Avoid Accidental Opening of the Window, Extra Security for Your Child and Window, Suggested that Locks are Fitted Top and Bottom for Maximum Security, Home Secure System Upgraded ?8 Universal Keys?Supplied with Universal 8 keys, Have 4PCS Sliding Door Locks, Each Sliding Door Locks Comes With 2 keys, The Keys are Universal ?Easy Installation? Easy to Install the Locks and Convenient to Use, Supplied with All the Security Fixing Accessories, Include Caps Stainless Steel Screws ?Application?Suitable for Most Hinged or Sliding Doors and Window, This Design is Very Useful for Home, Schools and other Children's Places International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.