Discovery Toys Think-It-Through Tiles

Set of Discovery Toys 'Think-It-Through Tiles with 6 books. Vintage (2001)? Math - Book 1: Advanced Math Multiplication - 7 yrs Book 2: Advanced Math Division - 7 yrs Book 3: Advanced Math Problem Solving - 8 yrs Reading - Book 1: Unlocking Word Power Keys to Word Meanings - 7 yrs Book 2: Unlocking Words Power Keys to Spelling - 7 yrs Book 3: Unlocking Word Power Keys to Reading - 8 yrs All in VGUC - some tiles have slight discoloration, Math Book 3 has slight tear on back and slight water staining. Weight 1.2 lbs