Aimee J luxe 6" spines fit all Aimee J Baby Luxe albums. These spines are made of the same suede material used on the Luxe Aimee J books and have a sticky back on them. To apply, you simply peel & stick on your album. These Aimee j spines are 12 x 12 but can easily be cut down to 8 x 8 to fit the mini books.