Triple - Weighted Regulation Colored Plastic Chess Pieces - by US Chess Federation Affordable & High Quality Triple Weighted Chess Pieces - Ideal for Individuals, Schools, Chess Clubs and Tournament Play! Extremely Heavy and Designed With Serious Play in Mind! Exceeds All US Chess Federation and FIDE Requirements for Official Tournament Use Perfect for Chess Players of all Ages and all Skill Levels Includes One Army of Chess Pieces - 17 Chess Pieces, including 1 Additional Queens (for Pawn Promotion) Manufactured Exclusively by the United States Chess Federation (USCF)