This single Class B bulb form pipette has a 20ml capacity and is made from high-quality, heavy-duty borosilicate glass. Designed for precise liquid transfer, it features a yellow color code and one-mark accuracy with a tolerance of ±0.050 ml. The pipette stands 20 inches tall, with an inner diameter of 5mm and an outer diameter of 8mm. Its bulb diameter is 19mm, and it can withstand high temperatures, with strain, annealing, and softening points of 515°C, 565°C, and 820°C, respectively.