Students will easily grasp various number concepts because they can see the results. Display number relationships of equal to (=), greater than (>), or less than (<). This balance makes learning number concepts easier because students can see the results. This is a self-checking balance that can display a variety of concepts such as greater than, less than, equal to, and basic operation skills. Demonstration-Sized Math Balance measures 25.59" W x 8.66" high and comes with twenty 10g weights.