Pandahall 1000PCS 3mm Round 316 Stainless Steel Spacer Beads, Hole: 1mm Size: about 3mm in diameter, hole: 1mm. Priced per 1000 pcs Material:Stainless Steel; Shape:Round; Metal Color: Stainless Steel Color Used to hold multiple necklace or bracelet strands of beads in alignment and to prevent tangling Insert them at intervals while stringing beads. Shipped by USPS, takes 7~15 days to receive it.