This 30mL (1oz) opaque amber high-density polyethylene (HDPE) narrow-mouth packaging bottle has a tough plastic construction that is injection blow molded for uniform wall thickness and strength. It is recommended for storage and shipping of light sensitive reagents. It meets USP light transmission standards and is manufactured in compliance with USP requirements for light resistant containers. Leakproof bottle is ideal for diagnostics, biologicals, specialty chemicals, reagents, adhesives, and veterinary pharmaceuticals. Supplied with an opaque amber polypropylene screw closure. Bulk Packed. Leakproof. Bottle Material: High-Density Polyethylene (HDPE). Bottle Color: Opaque Amber. Neck Type: Narrow Mouth. Closure Material: Polypropylene. Closure Color: Opaque Amber. Height With Closure: 61mm. Outer Diameter: 34mm. Neck Inner Diameter: 14mm. Closure Size: 20mm. Neck Finish: 20-415. Capacity: 30mL (1oz). Nalgene®#: 312085-0001.