Ceramic Insulator Beads, (1/4" I.D, 20/ft.) 1 KG of beads per Lot over 300 bead

Description

These have been taken out of a closed vacuum laboratory. Some were installed, most of them are New, Old Stock (NOS).
Some may have a little chipping but most are in near new shape. I have manually sorted out the beads with noticable chips.
.25" I.D. the picture has a .25" o.d. plastic tube running through it.
approximately 20 beads will insulate 12" (one foot) of wire.
This auction is for over 300 Beads, 1 kg total.