It is silver carbon chassis set for DIB. With the adoption of newly formed silver carbon material jointly developed with the manufacturer it is appearance with more quality than ever. By making the main chassis 2.4 mm and the upper chassis 2.0 mm, the chassis rigidity excellent in the balance of grip feeling and controllability was secured. Design adopts the tribal design which is the true point of OD. Please get the genuine parenthesis that you can not duplicate elsewhere.