Fangrui Product Details High Quality: The Screen Door Has A Superb Magnetic Force And Closes Automatically Within One Second, Silently And Tightly Sealed. Wider Top Velcro And Sturdy Screen Mesh Give It Greater Load-bearing Capacity; Durable And Hard-wearing For Years Of Use - Mosquito And Insect Resistant, Pet And Child Friendly, Ideal For Patios, Decks, Balconies, Campervans And More. Easy To Install And Remove: No Drilling Required, Quick Installation In Minutes. Velcro Is Suitable For Strong, Smooth Door Frames, Except For Painted Walls (which Are Fragile And May Crack). Comes With Nails For Uneven Wooden Door Frames. The Door Curtain Is Easy To Remove And In The Vast Majority Of Cases Leaves No Marks. Size Selection: The Width Of The Curtain Is 120 Cm And The Height Is 200 Cm. Measure The Inside Width And Height Of The Door Frame First, Then Increase The Width And Height By At Least 5cm. The Inside Width Of The Door Frame For This Screen Door Should Not Exceed 115 Cm And The Height Should Not Exceed 195 Cm. It Is Recommended To Buy A Bigger One Instead Of A Smaller One,as Long As It Does Not Exceed The Outer Dimensions Of The Door Frame. Note: If In Doubt About Size Selection, Please Message Us With The Size Of Your Door Frame And We Will Give Professional Advice, Do Not Buy Multiple Pieces And Then Return Them Unsuitable, This Will Be Costly For Us As We Do Not Sell Second Hand Products. Service: Screen Doors May Have A 0-2cm Error Due To Manual Cutting, Which Is Normal And Can Usually Be Adapted To This Error By Adjusting The Installation Position.