All the experimental tools you need are included in the kit, including 10 cotton swabs + 10 dishes + 10 droppers + 4 test tubes, which are specially designed for scientific experiments to make scientific experiments simple and enjoyable. Reliability and safety are our wastewater considerations. The agar dishes included in our kits contain a thick layer of agar and are ready for experimentation. All experimental tools have passed quality control to the quality of the products is and stable. Suitable for children over 15 years old. Our pre-poured nutrient agar dishes can the steps of dissolving and pouring agar, making the experimental process more convenient and faster. The agar plates we propose can the consistency and thickness of their performance, making your experimental results more convenient and accurate. Material: plastic colour: As shown Package Contents: 10 x cotton swabs 10 x dishes 10 x dropper 4 x test tube Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.