Vorel feeler 100mm long. 20 gauges 10mm wide and 100mm long. Gauges sizes: 0.95, 0.90, 0.85, 0.80, 0.75, 0.70, 0.65, 0.60, 0.55, 0.50, 0.45, 0.40, 0.35, 0.30, 0.25, 0.20, 0.05 and 1mm. Made from steel in a compact flick out casing. We can provide vat invoice on request.