10 x Fixer beads in Vega on Chalk with horizontal holes (8x7mm)

This is a pack of 10 glass- fixer beads in Vega on Chalk. They are a slightly curved tile measuring about 8mm x 7mm in size and have a groove on one side which is used to capture a cabochon or rivoli. They have two holes which are horizontally placed.The number for these beads is 03000/15726.