Performance plastic with flex ink. Ink won't fade, crack or peel. Each bottle features a two piece construction, consisting of the bottle and leak proof cap with built in nozzle. The low density polyethylene plastic is very responsive, with smooth bounce back that won't get stiff over time. Easy to control squeeze for dispensing.Pack of 6 wash bottles featuring easy to read labeling and safety warnings. Color coded chemical identification and screw cap and nozzle. 500ml capacity. Self venting.Each bottle measures 9 in total height (5.25 bottle alone) & 2.9 diameter. Bottle opening has an inner diameter of 1.7 and an outer diameter measuring 1.9.