Fastball
http://giant.gfycat.com/WeeklyYearlyDikdik.gif
Cutter
http://i.minus.com/iYgQmW5yivz9L.gif
Curveball
http://giant.gfycat.com/LittleIckyBat.gif
Sinker
http://giant.gfycat.com/EarlyAthleticGardensnake.gif
http://giant.gfycat.com/CrispDetailedBronco.gif