Needles correspond to the size bead you intend to use - ie.10/0 beads use 10/0 needles. For projects that require passing through the same bead several times, consider using the next smaller size needle. 10/0 is the largest, 15/0 is the smallest.
Sharps are shorter than beading needles and are used for lazy stitch and other types of sewn-in beadwork because they are less apt to bend. Use the same size needle as the beads you are working with.
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