DURABLE BALLS: These softballs are made with a solid cork interior with a durable synthetic syntax cover, not easy to deform or break; The surface of the softball is comfortable to touch, easy for you to play..OFFICIAL SIZE AND WEIGHT: These 12" practice softballs are official size and weight so you can practice exactly how you play. Perfect for kids, youth softball players, and other beginners to learn how to track, throw and field the ball with ease..FLAT SEAM: The lay-flat seams on the balls minimize air-friction so you can throw for maximum distance. Red stitching offers a classic look and helps pitchers get a comfortable, secure hold on the ball..OPTIC COLOR : The optic yellow cover makes makes these softballs easy to track and locate in the daytime or under the lights. Enjoy better visibility, so you do not get lost in the fields..UNMARKED SOFTBALLS: These training balls are totally blank for private custom with a lot of room for autographs or your logo, creative ideas. No doubt that this softball would be a great addition to any softball fan.