OHAUS Dial O Gram™ and Cent O Gram™ 300 Series Mechanical Scales & Balance Model:310 00 The narrow sack sampler (25mm) The narrow sack sampler (25mm) is ideal for free flowing powders and for small products like pepper corns and small grains whereas the large diameter sampler (45mm) is more suited to sampling larger products like nuts and beans They are the ultimate in quality and affordability The Cent O Gram and Dial O Gram balances offer the accuracy and convenience of an integrated weigh below balance while allowing students to visualize mass measurement principles both balances offer 10 times the readability of the Ohaus Triple Beam and Dial O Gram top loading balances