Materials:nitrile rubber(NBR), soft rubber not hard plastic. 9.53MM 20PCS. 7.14MM 20PCS. 19.05X23.81MM 2PCS. 15.88X24.61MM 3PCS. 11.11X19.05MM 4PCS. 9.53X20.64MM 3PCS. 7.94X14.29MM 3PCS.
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