The Mettler Toledo REF 30389212 Rainin 1000uL Pipette Tips are high-quality pipette tips designed for precise and accurate pipetting. Made by Mettler Toledo, a reputable brand in the industry, these tips come in a convenient case of 5 units. With a 1000uL volume capacity, these pipette tips are ideal for laboratory and research applications requiring precise liquid measurements. Made in the United States, these tips meet the standards of quality and reliability expected in scientific research and healthcare settings.