Phenomenal quality.  GOOD wood.  SOLID blocks.  My 2year old absolutely loves them.  Her hardest play with them can't dent them.  She threw one at the wall and left a dent in the drywall, but there wasn't a scratch on the block.  The designs are painted on some sides, and carved into others.  They're well balanced as well, and stack HIGH.  Very colorful.  Would purchase again in a heartbeat!