I couldn't find a shade made for an 8.9 inch tablet . Board was from Walmart the smaller size with the grid layout. It was like $2.50. Originally I meant to make it 1/2 inch longer at the bottom so it locked in around the bottom shoe. Just use some peel and stick Velcro. For the bends I just made a faint crease with the handle of a teaspoon and made the bend against a ruler. It was mostly just to test the shape but came out extremely sturdy just wish I would have used some of the very low profile Velcro it was also at Wal-Mart in sewing section but I used what I had in hand.