Correct

皮面

/ pímiàn / 
Strokes

Definition

outer skin/surface/leather cover (of a book)/drum skin/leather upper (of a shoe)

Example

As a Noun

leather cover/facing/binding

1
Zhè
这
běn
本
shū
书
shì
是
yòng
用
pímiàn
皮面
zhuāngdìng
装订
de
的
  
。

This book is bound in leather.

2
Bàn
半
pímiàn
皮面
zhuāngdìng
装订

half leather binding

3
Pímiàn
皮面
jīngzhuāng
精装
běn
本

leather-bound edition

As a Noun

outer skin; outside; surface