thick a4 sketchbook 8k sketch watercolor marker pen painting book for art students only hard case picture book 16k

upgrade thick paper 160g opaque ink-with pad(升级加厚纸张160g不透墨-自带垫板)

a4 [black card] 2 pieces/120 pieces(A4【黑卡】2本装/120张) a4 [black card] 1 pack/60 sheets(A4【黑卡】1本装/60张) a4 [black card] 4 pieces/240 pieces(A4【黑卡】4本装/240张) a4 [cowhide] 1 pack/60 sheets.(A4【牛皮】1本装/60张.) a4 [cowhide] 2 pieces/120 pieces(A4【牛皮】2本装/120张) a4 [black card + cowhide] 2 pieces/120 pieces(A4【黑卡＋牛皮】2本装/120张) a4 [thin cowhide] 1 pack/30 sheets(A4【薄款牛皮】1本装/30张) 8k [black card] 1 pack/60 sheets(8K【黑卡】1本装/60张) 8k [black card] 2 pieces/120 pieces(8K【黑卡】2本装/120张) 8k [black card] 4 pieces/240 pieces(8K【黑卡】4本装/240张) 8k [cowhide] 1 pack/60 sheets.(8K【牛皮】1本装/60张.) 8k [cowhide] 2 pieces/120 pieces(8K【牛皮】2本装/120张) 8k [black card + cowhide] 2 pieces/120 pieces(8K【黑卡＋牛皮】2本装/120张) 8k [thin black card] 1 pack/30 sheets(8K【薄款黑卡】1本装/30张) 8k [thin black card] 2 pieces/60 pieces(8K【薄款黑卡】2本装/60张) 16k [black card] 1 pack/60 sheets(16K【黑卡】1本装/60张) 16k [black card] 2 pieces/120 pieces(16K【黑卡】2本装/120张) 16k [black card] 4 pieces/240 pieces(16K【黑卡】4本装/240张) 16k [cowhide] 1 pack/60 sheets(16K【牛皮】1本装/60张) 16k [cowhide] 2 pieces/120 pieces(16K【牛皮】2本装/120张) 16k [black card + cowhide] 2 pieces/120 pieces(16K【黑卡＋牛皮】2本装/120张) 16k [black card] 1 pack/30 sheets(16k【黑卡】1本装/30张)