Haifu Blue Whale II Speed Glue. By far one of the best glues out in the market. Unfortunately, it's banned by the ITTF for sanctioned tournaments. But that doesn't mean you have to use VOC-Free Glues if you aren't playing in a tournament.
Blue Whale II was used by China's National and Provincial Team. It was a standard amongst all the players. Now because of the ban, the price has dropped. Personally, I use this glue to practice with and I use Haifu Tuner when I play tournaments. They both play similar except this glue is lower cost.
Why is the price high? Most of the shipping costs are already included in the price.