Dunlop Biomimetic Vibration Dampener Black / Green (2 Pack) The Dunlop Biomimetic Vibration Dampener was made to stabilize your game. Pack includes 2 hexagonal black and green dampeners... Size - (See Description) | Color - (See Description) Authorized Dunlop Dealer. All racquets are strung and ready for the courts! SEE SELLER DETAILS FOR RETURN POLICY.