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United Scientific GRPL12 Glass Stirring Rods with Pre-Assembled Rubber Policeman, 304.8mm Length, 10mm Diameter (Pack of 12): Science Lab Stirring Rods: Amazon.com: Industrial & Scientific
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Walter Stern 201 B Natural Rubber Straight Type Policeman Scrapper, 5 mm Rod Size (Pack of 72) - Yahoo Shopping
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UNITSCI - Glass Stirring RODS W/Rubber Policeman, 8" Long, 5MM Diameter, PK12: Amazon.com: Industrial & Scientific
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