These disposable plastic dropper tubes come in heart pentagram long strip and flat styles. Suitable for laboratory liquid injection sample transfer dropping experiment and craft DIY production. Widely used in school teaching biological chemistry lab daily art creation and wholesale supply scenarios. Made of food grade plastic, safe and non-toxic. Multiple shapes including heart pentagram long strip and flat tube. Disposable wholesale design, smooth surface, easy liquid absorption and dropping, lightweight and portable for lab and daily use.