New Louisville WTL9501 Series 5 Stick Pack Bag Royal Black 100 % Polyester does have a slight rattle. double knit cloth cover holds up 9:Sedona Sage double knit cloth cover holds up to powerful swings Washable cover keeps the ball in pristine condition for every practice Limited flight design travels 75% of the distance of a regular ball for training indoors or outdoors Washable and will last as long as a regular ball Carries 75% of distance when hit A great training aid for indoors or outdoors hitters will see a dramatic increase in not only swing speed and cleats Mesh bat sleeves hold up to 2 bats doubles as water bottle holder Front panel for easy decoration Front pocket for shoes or gear Durable J style fence hook Foam padded shoulder strap