SET OF 7 || Size 1-7 tapered, blue-colored filter adapter cones | FOR BUCHNER FUNNELS || Designed for use with Buchner funnels in filtration assemblies | DURABLE & STURDY || Made of quality, flexible neoprene rubber - Good chemical stability and can withstand a wide temperature range - Autoclavable | STACKABLE || Can be nested within different size cones for convenient storage | MEASUREMENTS || Cones vary in size - Height: 20mm to 43mm, Top: 22mm to 81mm, Bottom: 11mm to 57mm

INDUSTRIAL QUALITY || 250ml capacity measuring cylinder. Class B tolerance. The translucent, rigid polymer construction is resistant to fatigue for superior and dependable durability | OCTAGONAL BASE || Cylinder features a octagonal base for maximum stability | RAISED GRADUATIONS || Superior optical clarity with easy to read, raised 2ml graduation lines that are marked every 20ml. Calibrated to contain | POLYPROPYLENE CONSTRUCTION || Made of high quality polypropylene that features high heat tolerance, and good to excellent chemical resistance. Autoclavable for easy cleaning and sterilization | GREAT FOR PROFESSIONAL LABORATORIES, CLASSROOMS & HOUSEHOLD || Designed for use in professional laboratories, but is an ideal choice for science classrooms and household use

LODESTONE | This naturally magnetized mineral creates it's own magnetic field and can pick up small metal objects. Iron particles cover its surface. As an iron oxide, lodestone has a characteristic black color, and may feature rusty patches of yellow or orange | GREAT FOR GEOLOGY CLASSROOMS | An excellent introductory mineral, and useful in teaching mineral chemistry and crystallography | LOCALLY PROCESSED | Our rock and mineral samples are sourced from a variety of locations around the world and are processed in Victor, NY | GEOLOGIST SELECTED | Each specimen is selected and hand processed by an actual geologist, ensuring each sample exhibits defining features | INDIVIDUALLY PACKAGED & LABELED | Each specimen sample is packaged in a transparent bag, and is labeled & barcoded for easy identification