To fill, remove the screw from the underside and use the included mini funnel to insert a small amount of dust into the chamber. It is recommended to place a drop of glue on the end of the screw before tightening to ensure the remains stay sealed airtight forever. Please keep in mind that this is a keepsake item designed to hold a small amount of ash in the chamber behind the screw cavity and not a hollow pendant. The chamber measures approximately 12 x 2.8mm.

All of my urn jewelry comes with a fill kit that includes a funnel.