The first triple beam designed specifically for educators Adam Equipment's TBB is the sturdiest choice for the classroom with a strong metal housing, stainless steel weighing pan, and a larger overall body than other triple beam balances. Tripod legs are not available on this model. Integral weigh-below hook allow you to do density and specific gravity determination through a table hole or other lifting method. Your TBB can be locked to the bench or table using the built-in security slot and an optional lock and cable. The Adam Assurance warranty covers all parts and labor with prompt reliable service for educators 5 years for TBB2610S and TBB2610T, and 3 years for TBB610S.