Contains two size 10 and two size 12 suitable for most seed bead sizes

Size 10 needles fit through size 11 seed beads. Pack of 6.
Size 12 needles fit through size 15 seed beads. Pack of 4

Size 10 needles fit through size 11 seed beads
Size 12 needles fit through size 15 seed beads
Size 13 is a fine needle suitable for multiple passes through smaller beads such as size 15s
Size 15 is a very fine needle suitable for multiple passes through smaller beads such as size 15s

Contains two size 10 and two size 13 suitable for most seed bead sizes

With a curved beading needle beads are less likely to slip off your needle. Size 10 needles fit through size 11 seed beads.