The K70 is a full 104-key keyboard and it has the size and weight to show for it. The stories are entertaining while being educational, much better than a dusty tome. She had no traction at all. Two things we NEVER skimp on in my family. As some reviews claimed the shoes run large I bought a size 7 (usually 7-7. I used this on my TI 84 Pus C Silver Edition and it worked perfectly. Very nice mid range and high end detail but I have found the highs a little fatiguing until the drivers break in a bit. A US size 12 delivered so they are too small. When I met him, I begged him to stop wearing them in public. To make it worse one of them had a hole in and Amazon refused a refund - total waste of money!