These have a 1 mm hole drilled at both ends. The sizes as given below are a guide and are approx. 26mm - 43mm long.
Seashells, Drilled Gorgeous Craft Shells for Craft & Beads Jewellery SH50 x 25
Cowrie Shells, Seashells for Craft and Beads jewellery SH7 , 25 pieces
Shells, Drilled Gorgeous Craft Shells, 24 pcs, for Craft & Beads Jewellery SH13
Shells, Drilled Gorgeous Craft Shells, 20 pcs, for Craft & Beads Jewellery SH11
Seashells, Drilled, for Craft and Beads Jewellery 25 shells, SH5
Seashells, Drilled, for Craft and Beads Jewellery 25 shells, Aquarium, Deco SH2