Amazing Shields Is Perfect For Youstrong>Will Amazing Shields Stick Well On My Sofa Strong>Yes During Our Extensive Test, Amazing Shields Has Proved That The Combination Of Strong>Self-Adhesive Sheets And Twist Pinsstrong> Guarantee That The Sheets Will Stay In Place For A Very Long Time Strong>Your Cat Wont Be Able To Remove The Protectionstrong> So Yes, It Will Stick To Your Couch Also, Amazing Shields Large Size Provides More Area Of Contact With The Surface, Increasing Adherence Strong>Do I Have To Use The Twist Pins Will The Twist Pins Leave A Mark On My Couchstrong>We Recommend The Use Of The Pins, They Are Very Effective In Supporting The Protectors So They Wont Fall Off And Will Stay Flat Around The Corners Of The Couch On Fabric, The Mark Is Near Invisible The Twist Pins Were Designed Not To Damage The Furniture Some Customers Only Secure The Top Corners With Pins Since The Sheets Are Self-Adhesive Strong>How Often Do I Have To Replace Amazing Shieldsstrong>Amazing Shields Was Designed To Set-And-Forget There Is No Recommended Time To Replace Amazing Shields Some Owners Use Amazing Shields To Train The Cat And Them Remove It, Some Prefer To Keep It And Replace It Every Month Strong>Will Amazing Shields Help Me To Train My Catstrong>Yes Cats Are Very Smart Animals Most Of The Time, They Will Choose To Scratch Your Furniture When Youre Not Around Amazing Shields Will Discourage Scratching On Furniture Without The Cat Viewing You As The Troll That Guards The Couch Amazing Shields Is A Good Addition To Your Training Strategy Amazing Shields Was Invented To Help Pet Owners To Provide A Pet-Approved Housing, And Reduce The Number Of Cats Abandonment In Shelters