Features:
A special collar for edible mushrooms, consisting of a bell mouth and a lint-free cover, simple and portable.
very easy to use. The cover plate can be used under high temperature and high pressure, so it can be used with confidence.
The pocket sealer is a set consisting of a ring and a lid for easy access.
The cover is equipped with a sponge, which is conducive to the growth and ventilation of mycelium.
It can be used for sealing plastic cultivation bags or fungus bags, without cotton plugs, easy to use and labor-saving.

Specification:
Material: plastic
Size: 1.57*0.98in/4.0*2.5cm
Color: as picture shown

Package Includes: 10pcs

Notes:
Please allow minor errors due to manual measurement.
The colors may be a little difference for the different monitor display.