What is the minimum weight for Ergo Omni?

Could you please elaborate on the specific requirements regarding the minimum weight for Ergo Omni? Is there a set standard or range that needs to be adhered to? I'm particularly interested in understanding if this weight restriction is related to the product's functionality, durability, or compliance with certain regulations. Any insights you can provide would be greatly appreciated as I'm considering integrating Ergo Omni into my current financial services offering.