Extendons Quantity Selector replaces basic field with branded plus/minus buttons, per-product min, max & step rules, real-time validation, multi-page display, & mobile-first styling. It streamlines bulk or pack-size ordering, prevents quantity errors, lifts average order value, protects limited inventory, & improves shopper confidence & conversion while reducing cart abandonment. Designed for seamless compatibility with various themes & apps, ensures a cohesive user experience.