One Piece Blue: Grand Data File

One Piece Blue: Grand Data File (ワンピース　ブルー　グランド　データ　ファイル) is the second databook. It was released on August 2, 2002

It includes not only various character and series information, but it also eight new four-panel manga side stories, the Luffy Pirates 4-Panel Theater (ルフィ海賊団四コマ劇場 Rufi Kaizokudan Yon-Koma Gekijõ). Each of the shorts featured one of the Straw Hat Pirates in absurd situations.

Devils Fruits Encyclopedia
Gommu Gommu - Rubber rubber fruit. Eaten by Monkey D. Luffy

Effect: User is able to stretch his body like rubber, immune for lightning and electircity