4mm Glass Fibre Refills (10) for GM633

Glass fibre refills

These are specifically for the Gaugemaster Glass Fibre Pencil ref. number GM633. There are 10 in the pack.

These glass fibres are very harmful to your skin, so keep fingers well away from them. It is also recommended to wear a face mask in order to avoid breathing in any dangerous glass-fibre particles when using these in your Glass Fibre Pencil.