The Ohaus 311/310 balances are a favorite in classrooms and industries worldwide. The balances offer high precision and remarkable value. The three-point base, special floating bearing principle, and beam design eliminate the need for level adjustment. Zeroing is quickly achieved by means of a zero adjust knob at the end of the beam. With aluminum pressure castings for the base and beam assembly, agate bearings, steel knife-edges, and stainless steel pan, everything about these balances ensures a high standard of quality. Features: High precision and remarkable value, Three-point beam eliminates the need for level adjustment, Quick-zeroing with zero adjust knob, Vernier dial convenience.