This pack of 12 wide-mouth reagent bottles is made from rigid translucent polypropylene with a 60mL capacity each. Each bottle includes a leak-proof screw cap and features a wide neck with a 25mm outer diameter and 21mm inner diameter. Each bottle measures 3.3 inches tall and 1.5 inches in diameter. The polypropylene construction provides excellent chemical resistance to acids, alcohols, and alkalis, with very good resistance to aldehydes and hydrocarbons. Stable between -20°C and 135°C. Both bottles and caps are autoclavable and top-rack dishwasher safe.