hard shell sketchbook super thick thick a5 flip-up kindergarten a4 art student children portable sketch book painting beginner

a4 leather flip-up and down 30 sheets 8k leather leather top and bottom flip 30 pieces 16k leather leather top and bottom flip 30 pieces a5 leather top and bottom turn 30 pieces a4 leather flip-up and down 50 sheets 8k leather leather top and bottom flip 50 pieces a4 leather left and right turn over 30 pieces 8k cowhide left and right turning 30 pieces 16k cowhide left and right turning 30 pieces a4 leather left and right turn over 50 pieces 8k cowhide left and right turn 50 pieces a4 black card top and bottom flip 30 sheets 8k black card flip up and down 30 pieces 16k black card flip-up and down 30 pieces a5 memory black card top and bottom flip 30 pieces a4 black card flip-up and down 50 sheets 8k black card flip up and down 50 pieces 8k pocket no shell sketch paper sheets 19 sheets

1 book [thickened 160g-double-sided hard shell]] 2 books [thickened 160g-double-sided hard shell]] 3 books [thickened 160g-double-sided hard shell]] 4 copies [invoice available-large quantity to change price]]