Tilt your test tube rack to 25°, 35° or 45°. Adjusting the angle of racks reduces hand strain when working with pipettors. Ideal for creating agar slant tubes. Fits racks up to 29.3 x 24.2 x 8.3cmH (11-9⁄16" x 9-9⁄16" x 3-1⁄4"). Use with the Mini-Magnifier (378650000) to aid in the viewing of Petri dishes. Steam autoclavable at 121°C (250°F). Research, industrial and healthcare professionals rely on SP Scienceware for their sample handling needs. Sold worldwide, Bel-Art and H-B Instrument brand laboratory supplies include over 5,000 items from safety wash bottles to fume hoods, thermometers, racks, desiccators, hydrometers, ice buckets, scoops and spoons. Custom calibration services, plastic molding, specialty coatings and wire manufacturing are also available. Wilmad-LabGlass brand laboratory glassware complements Bel-Art and H-B Instrument with over 7000 items including NMR and EPR consumables and specialty glassware, as well as custom fabrication for individual glassware, glass repair services and OEM glass parts. SP Scienceware is a division of Warminster, PA based SP Industries which also include SP Scientific laboratory, thermal management, and pharmaceutical production equipment and SP Ableware aids for daily living.