You can add drop by drop until you get the desired concentration

WHAT IS IN OUR BALLOON ANIMALS KIT

1 straw hat

4 Ounce Glass Containers

7 medium needles

Digital Tire Pressure Gauge,ATsafepro Tire Pressure Gauge with Flexible Hose… Soul Insole You can add drop byA practical tire care or tire accessory for keeping vehicles clean and protected. Chosen from Amazon's better selling, well reviewed options in this category. 1. High Accuracy: Professionally calibrated and certified with an impressive accuracy of within 1%, this digital tire pressure gauge provides reliable readings with a display resolution of 0. 5 psi. Straightforward to use at home or in the garage.