…PTFE 1182R03 contains 10 assorted PTFE spacers for Specac Omni Cells, 2 of each per thickness: 0.05 mm, 0.10 mm, 0.20 mm, 0.50 mm, 1.00 mm (rectangular). Same product—same quality—now Sigma-Aldrich brand Legal Information Specac is a registered trademark of Specac Ltd.