This item is designed to cover crimp tubing used to finish bracelets and necklaces.
When item is closed over crimped tubing it will look like your piece ends with a 3.0mm bead.
Crimp Bead Covers for Jewellery Making

Material:
925 Sterling Silver - anti-tarnish finish

Size:
Dimensions: 2.4mm x 3.9mm (0.096” x 0.153”)
Opening: 1.25mm to 1.45mm (0.050" to 0.057")

Package:
10pieces of Crimp Bead Covers