It comes with a tamper-evident cap, and the ring will come off once it is opened. Caps for 500/750/1000mL
Size (mm): φ54
Color: Blue
Material: PP (polypropylene)
Type: With inner ring and tamper evident cap
Compliant with UN standards for solids
RoHS2 (EU)2015/863 compliant [About RoHS]
