1. Material20 pieces 1ml transparent droppers are made of plastic, which is waterproof and not easy to break. A sufficient quantity can better meet your usage requirements. 2. Precise scale: a scale is attached to the transparent pipette. With the scale, you can accurately control the liquid volume. With our calibrated drip pipettes, you can do the job with ease! 3. Easy to use: when using this product, you need to squeeze the suction bag of the pipette to deflate. Then put the pipette into the liquid, release your finger, the liquid is easily sucked off. 4. Disposable: These pipettes are very easy to use and suitable for tiny liquid applications. Disposable transfer pipettes ensure that the contained liquid is clean and of impurities. Equipped with 1ml transparent white plastic pipettes, they are convenient to use without the need for much cleaning, saving you time and energy.