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Hoffman Clips
soft hand feeling and rapid inflation
Fragrance Free
Built to last & recyclable
Premium Quality: This product is made of high-grade construction all the way through
Respiration Apparatus Experimentation Calculator Hoffman ClipsComprises two boiling tube each with stopper and two lengths, one short and one long of 5 mm glass tubing, connected by PVC tubing and plastic T. For inhaled and exhaled air test. Excellent practice and experiment tool for students, teachers or even at home. Designed for use in professional laboratories but is an ideal choice for science classrooms and household use. If you need custom order with different sizes design, please contact us. Safely
