High-Temperature O-Ring Dimensions:152.4mm This round sterling silver component

This round sterling silver component includes a closed ring

This sterling silver square padlock clasp is perfect for heavier necklace and bracelet designs

this 14/20 yellow gold-filled long & short chain features dapped rectangle and round links that add depth and texture to custom designs

1mm round wire and features a flattened center

your customer simply adjusts the sizer to fit and returns it to you

High-Temperature O-Ring Dimensions:152.4mm This round sterling silver componentThis special, high temperature O ring fits the lid of the small crucible cooling jar (4 1 4" diameter) to create a vacuum seal. Keeping air away from cooling graphite crucibles helps extend their service life.