easy question

[alard17]

Hi all;
I was looking for a servo for my new project for the first time at hobby king website and I found that there is three main numbers that define each servo
(the first number) in gram / (the second number) in kg / (the third number) in second
my question is : what are those numbers

and thanks

[xxpitt]

I wrote stuff but realised it was all wrong so deleted it

[MrBen]

grams : how many grams the servos weighs

kg : torque, how much power the servo has

seconds : speed, how fast the servo is