Silver plated base metal crimp tubes/beads for .5mm Elasticity. Outer diameter measures 1.8mm by 4mm. Inner diameter measures 1.3mm.
These crimps are designed to hold .5mm stretch cord without needing to knot and glue the cording. For maximum security, apply a dab of glue (such as Hypo Cement) inside the crimp tube before crimping with your Designer Crimper Tool.