Earthworm, 8-10", plain   :   Mass Set, Hexagon   :   

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 -  Monday, January 05, 2009
Fun, educational, durable
Reviewed By: Shelby 
My kids loved this, did all the activities and created their own gear systems. It is an excellent way to introduce gears to young kids.

 -  Sunday, June 22, 2008
Just great!
Reviewed By: Mickie 
My son and daughter love seeing how things work. They love to invent. This book sparks lot's of ideas for them. This is a great book and great value.

 -  Tuesday, December 04, 2007
Fascinating learning tool
Reviewed By: Karen Ali 
A beautiful book, and a great learning tool. I am looking forward to sharing it with my grandson.

 -  Thursday, January 04, 2007
Rachel C.
 
My son loves this! It is not only fun but educational. He enjoys putting the gears together and then switching them on. A great product for a great price.