The ornamental design for a “balance”, as shown and described.
FIG. 1 is a first perspective view of the balance, with a controller in a closed state;
FIG. 2 is a top view of the balance;
FIG. 3 is a bottom view of the balance;
FIG. 4 is a left side view of the balance;
FIG. 5 is a right side view of the balance;
FIG. 6 is a back view of the balance;
FIG. 7 is a front view of the balance; and,
FIG. 8 is a second perspective view of the balance, with the controller in an opened state.
The broken lines show portions of a balance that form no part of the claimed design. The dash-dot broken lines define the bounds of the claimed design and form no part thereof.