Multi-layer leakage-prevention design, for guarantee. Glass ball valve, resistant to acid and alkali. Good ... +/-0.3mL · Customized color and dip tube length are accepted · For the first usage, 3 to 4 times of pumping will ... leakage during transportation and storage · Applications: shower gel, body wash, liquid body soap, bath lotion, bath gel, shampoo, hair conditioner, hand sanitizers, dish ...