500ml Clear Glass Reagent bottle,Wide mouth,with ground stopper,Graduation 400ml As Shown in Picture. Glass Reagent bottle,wide mouth,with ground stopper. 1, Capacity 500ml, 2, Material: borosilicate glass 3.3, 3, Quanity: 1 Pcs 4, Standard:ISO international standard. Welcome to our store! We are honest and trustworthy seller.