The threaded protrusion guides and holds the opening.
There is a hole at the bottom, so you can insert your finger or a penlight to operate it. Model number: DC-60
Hard
Quantity: 1 piece
Material: Silicone rubber (high tear resistance special grade)
Total length x threaded protrusion length: 108 x 42 mm
Hole inner diameter: 21mm
Autoclavable
Can be sterilized by boiling
