SRH (short round head) medium weight sticks and adaptable to many playing styles
7A is a lighter and narrower stick ideal for younger players
5A is an average size stick, suitable for most players, most of the time
5B is a heavier and fatter size stick, ideal for playing heavy rock style.
Maple sticks are lighter than Hickory or Oak so you could be playing with a larger diameter stick without having a heavy or slow and sluggish feel,
Having wooden tips will offer a warmer and quieter sound.
Heavier sticks will produce a heavier, fatter sound. Lighter sticks may be for soft playing or just a more comfortable feeling as you play. Longer drumsticks produce an easier reach to your cymbals but they are not good for fast playing.