Shunji Shanghu version of the bare back 26 ~ 1.45, weighing 4.73 grams. Shunji Shanghu version of the bare back 26 ~ 1.45, weighing 4.73 grams. Shunji Shanghu version of the bare back 26 ~ 1.45, weighing 4.73 grams. Shunji Shanghu version of the bare back 26 ~ 1.45, weighing 4.73 grams. Shunji Shanghu version of the bare back 26 ~ 1.45, weighing 4.73 grams.