Combined shipping is a shipping method that allows sellers to combine multiple items purchased by a single customer into a single shipment, thereby reducing shipping costs for the customer. When a customer buys multiple products from the same seller, instead of paying separate shipping fees for each item, combined shipping enables them to pay a reduced shipping rate for the entire order.

However, As we are an online marketplace platform, Every seller manages and configures their shipping offers and combined shipping rules. 

Please keep in mind that not all products have combined shipping rules because this is up to the seller's decision.