Safe materials: Our pipettes are made of food-safe silicone and plastic, are safe to use and non-toxic for children, durable and reusable. Multi-functional pipette: good suction to keep the liquid in the pipette, to release a small amount of liquid. Plastic pipettes suitable for scientific experiments, painting, mixing, molding, crafting etc. Product size: the length of the pipette is 12.2 cm and the diameter of the pipette is approx. 2.5mm. The pipette is marked with a bowl (1-5ml), which can absorb 5 ml of liquid. The length of the cleaning brush is 12 cm. Easy to clean: the silicone tip and dropper of the pipette can be easily separated for easy indoor and outdoor cleaning. With the cleaning brush, the inside of the pipette is cleaned. The pipette is dishwasher safe and can be cleaned with soap and water. Box contents: 10 pipettes and 2 cleaning brushes. The silicone pipette has 5 colors to choose from: 2 x sky blue, 2 x red, 2 x green, 2 x orange, 2 x pink, different colors are easy to distinguish.