The Tricky Dicky Block'em Blue Professional Cornhole Bag has a speed rating of 6 on the back side It is equipped with our Turbo fabric, rated a 9 on the fast side. It has a flop factor of 4. It's one of the most accurate bags you will ever throw. You can also customize your own Tricky Dicky™ fabric combonitaion using our 3D web designer here: Custom Cornhole Bags - Tricky Dicky™ Series