It's very easy: if the owner has activated this with his item, the renter can select shipping accordingly during the booking to have the item delivered to him. Both the owner and the renter will then receive a shipping label (PDF) with a track and trace code after the payment has been completed. This label can be printed out and attached to the shipment. Then the shipment can be taken to a parcel dropoff point. The insurance fee may be slightly higher because the days needed for shipment are also insured.
Also read our tips for packaging and shipping your equipment.