SPINBAR OCT TEF21/2X5/16IN. ,Each

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Here is the corrected text: Octagon magnetic stirring bars with integral pivot rings are the most commonly used shape. The interrupted profile provides greater surface area and added turbulence when compared to the smooth surface of cylindrical bars. Key Features: * Alnico magnet encapsulated in FDA Grade, USP Class VI Teflon PTFE low-friction coating; durable and inert * Pivot ring aids in reducing friction and chattering (except for 58948-091 which does not have a pivot ring) * Autoclavable * Manufactured in a registered ISO 9001:2008, as verified by SGS certification Ordering Information: * 6-Assortment includes six Octagon Spinbar Magnetic Stir Bars, 2 each size; 5/16 x 1" (8 x 25.4mm), 5/16 x 1-1/2" (8 x 38.1mm); 5/16 x 2" (8mm x 50.8mm) * 12-Assortment includes two of each 12.7x7.9mm (1/2x5/16"), 15.9x7.9mm (5/8x5/16"), 25.4x9.5mm (1x3/8"), 38.1x9.5mm (1-1/2x3/8"), 50.8x9.5mm (2x3/8"), and 63.5x9.5mm (2-1/2x3/8") Product Specifications: * Length: 16 mm (5/8") * Diameter: 7.9 mm (5/16") * GSA Contract: Y * Length: 25 mm (1") * Diameter: 9.5 mm (3/8") * GSA Contract: Y * Length: 38.1 mm (1½") * Diameter: Assortment * GSA Contract: Y * Length: 51 mm (2") * Diameter: 7.9 mm (5/16") * Length: 76 mm (3") * Diameter: 7.9 mm (5/16") Note that I corrected grammatical errors, reorganized the text for better readability, and standardized the formatting of the product specifications. Let me know if you have any further requests!