Tira’s shopping bag shows two products with a quantity of one. The free wipes get a small “Qty: 1” label. The face wash gets minus and plus buttons. Both numbers say the same thing. Only one is presented as something to edit. That detail is a useful starting point for quantity stepper UX. Before deciding how the buttons should look, decide what the number represents and what the customer can do with it. Three screens from Flownato’s reference library make that question concrete. ...