How do you know what size bead cap will fit a 10mm round bead?

To determine the appropriate size bead cap for a 10mm round bead, look for bead caps specifically designed for beads of that size, typically labeled with their compatibility. A bead cap with an inner diameter slightly larger than 10mm will fit well, allowing for the bead to sit comfortably within the cap. It's also helpful to consider the depth of the cap; a deeper cap will provide more coverage and a different aesthetic. Always check product specifications or consult with a supplier if uncertain.