... straight or curved tips in regular concial or round type. Graduated or no printing. Teat availability: ... black rubber bulbPacking: 12pcs/boxWe have many other lab glassware, including stain dish, glass stirring rods, desiccator, ... wall beaker, high beaker, buret, filtering flask, flask, flat bottom flask,Erlenmeyer flask, angler distilling flask, measuring cylinder, pipette, test tube,distilling ...