Tourna Sampras Lead Tape (Black)

Description states item weight is 1 pound and shipping weight is less than 1 ounce. So what is the actual weight of lead i am purchasing?

What's the thickness of the tape? I know it's 1/4" wide but what's the thickness, or depth... need it for a non tennis application.

With the weight of a few grams, will it have such a noticeable effect on the racquet?

Is there an index on the package showing how much tape equals how many grams. For example 1 inch might equal 1 G. Don't know