Anyone tried the IWAKO Japanese Eraser?

BC USA TOYS AND STATIONERY JAPANESE ERASERS

BC USA Toys and Stationery is where you can order Japanese Erasers online, wholesale.  BC is the general worldwide agent and distributor for ALL Iwako and TRC Zensinsyoji erasers made in Japan.  Environmentally friendly lead-free, recyclable, non-toxic, non-PVC clean and safe erasers, highest quality and effective clean erasers made in Japan.  Take apart educational ouzzle designs.  You can buy as few as 1 box or as many as you like, special custom order for special clients and events.  BC ships nationwide and worldwide daily.   BC has the most extensive source of IWAKO Japanese Erasers.  See the resource link for more information.

I have not tried them but did you know they have their own http://www.museum.www.iwakousa.com THERE ARE 437 DIFFERENT JAPANESE ERASERS.
Including different designs and colors currently available, as of 5/15/2009.
ENVIRONMENTALLY FRIENDLY RECYCLABLE ERASERS MADE IN JAPAN.

1- Recyclable.
2- Non-toxic lead-free safe materials.
3- Non-PVC releases no toxic fume.
4- Energy saving production.
5- Recycled paper packaging.
6- 100% Made in Japan in clean environmental friendly factories.
7- Meet all international standards in safety and environmental care.
8- Take apart educational puzzle designs.
9- Small parts, not for children under 8 years of age.
TAKE APART ERASERS. You can take apart most of these Japanese erasers and put them back together again and again, you can even mix-match the colors to create your own unique colors. The take-apart function only works with erasers which has more than 1 color. They are intuitive educational and fun.