Very hard to determine the size of the servo's, but it looks something like this http://www.dealextreme.com/details.dx/sku.4490 for this one http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?aff=5361&idProduct=12875
Very hard to determine the size of the servo's, but it looks something like this http://www.dealextreme.com/details.dx/sku.4490 for this one http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?aff=5361&idProduct=12875