about tennis ball

Used balls:
As far as I know, only avail in some kiosk(which sells snacks & drinks...etc) with tennis courts nearby. Cos they may hv someone pick up stray or even discarded balls during the day...Or you can try your luck in those auction web sites, such as:
http://hk.list.auctions.yahoo.com/hk/25421-category-leaf.html

Cheap balls:
practice balls(non--pressurized) that come in bags (usually 50 balls) is the cheapest, but not easy to find. Try Wah Sun(?) in Causeway Bay at Yee Wo Street, opposite to Regal Hong Kong Hotel. But my suggestion is go to Mong Kok, buy in bulk, that is a least one box, that is 24 筒 per box. really cheaper than outside

Special priced balls:
Avail at Fa Yuen Street in Mong Kok. Most shops there sells balls cheaper than other areas. Buy more cans get more discount.From UNY or Jusco, but still $100 for 4 cans.

Ok la, Good luck!

how much is a tennis ball?
Usually it has 3 tennis balls in one can. I personally assummed Slazenger has the highest quality & price, it costs about HK$45.00 per can.
Perhaps Chinese 航空牌with the lowest price, around HK$22-25.00/can.
Please note that above prices are only estimated & not 100% correct.

lowest price = HK$10
highest price > HK$100

IT IS AROUND $5 - $10