This is a good stationary shop on two floors. They have a lot on stock e.g. I bought my drawing board (Staedtler) from them. But they have lots of other stuff too. It's a bit tricky to find Wing Wo street, it's easier if you are coming from Queen's Road.
Reliance Stationary Centre
Ground Floor
17-19 Wing Wo Street
Central
Tel. 25224881
Reliance Stationary Centre