These are the standard regulation-size chess pieces for all forms of chess play. Club Special chess pieces are in use nationwide for chess instruction and chess competitions for children and adults alike. Major chess tournaments such as the US Open use the "Quality Club Special" pieces. These are the pieces you need for club, classroom, and competition.
The top recommendation is the Quality Club Special Pieces. We sell thousands of these sets to individuals, schools, clubs, and tournament organizers every year. You will be virtually guaranteed break-free play for years. If you lose a piece or pieces you are able to easily obtain replacements for free.
Other options are the Heavy Tournament Chess Pieces if you desire extra weight, or the Basic Club Special if quality is not as much a concern and you specifically like the whiter color.