Hand sewn from cotton ticking or garment leather, depending on options selected. Spout is heavy leather, plug is hand shaped from manzanita, and held on with a hand twisted cotton cord. The entire bag is treated with Badger’s Briar Butter for water resistance and durability. The spout is approximately 5/8″ diameter, so it should easily accommodate round balls up to 0.62″. Each bag is made to order, allow an extra week to ship.