This is a slider. Have the seams in the right place and hold your fingers like this.
Turn your hand like this to get it spinning.
Angle your arm like this.
This is how you do a curveball. Hold the ball like this.
Knuckleball. A knuckleball you have to throw with no Bend in your arm.
Two-seam fastball have a bend in your arm.
Hope you enjoyed the pictures and the videos!