This rubber grommet is a customized part for CROWN/Samducksa Korean levers CWL-303/307/309 and allows you to change the tension of your levers to your desired hardness
The CWL-HST has five types of silicone tension strength
In addition to the standard strength 35g (blue) pre-installed in CWL-303MJ-DX-KMS-HST35, there are softer 25g (white), 30g (yellow), 32g (purple) and harder 45g (red).
CWL-HST uses acetal as the central bobbin material and is finished by precision machining
The center bobbin of CWL-HST is white in color
The rubber grommet installed on the CWL-309FJ-KMS-ST35 Help me model called as CWL-ST has the same standard strength of 35g, however it uses plastic for the bobbin material and is processed with a mass production mold, and is different from the CWL-HST
The center bobbin of CWL-ST is black in color
Pictures on this product catalogue are officially provided by Seimitsu Industry or taken by actual however we are afraid of they are not reflect correct color and/or information such as description, contents, etc. No return or replacement will be accepted.