Baseball is a ball game with baseball as its main feature, which is collective and confrontational. It is a team sport known as "competition and intelligence".
It combines dynamic and static, with a clear division of labor. The team members not only emphasize personal wisdom and talent, but also must pay attention to strategy and tactics and cooperate with each other. The division of labor among the members is clear, the responsibilities are clear, and they must actively cooperate.
The bat of a baseball is cylindrical and is made of a whole or two or more pieces of wood bonded together. When bonding wood, keep the wood grain uniform and use only adhesive. The bar face must be smooth and free of cross-section joints. The length of the rod should not exceed 1.07 meters, and the diameter at the thickest part should not exceed 7 cm. Professional athletes who use a bat made of a combination of metal, wood or bamboo must obtain the approval of the referee before using it. In addition, the depth of the recess of the concave bat must be within 2.5 cm, the width within 5.1 cm, and not less than 2.5 cm, the cross-section of the recess must be bowl-shaped, and no other substances must be attached.
When playing baseball, teammates should wear uniform uniforms of style and color. The back of the competition clothing jacket should have an obvious size of not less than 15.2 cm, and the size of the jacket and trousers should be the same. The sleeve length of the competition uniform varies according to the body of each player, but the length of the two sleeves must be roughly the same, otherwise the competition will not be allowed. Members of the same team shall wear the same color inner shirts. Players other than the pitcher may have markings, numbers, words and badges on their shirt sleeves. Players are not allowed to decorate the competition uniform with accessories of a different color than the competition uniform. Uniforms must not contain anything that resembles or is reminiscent of a baseball shape.
The protective gear used in baseball generally includes caps, face guards, chest guards and leg guards. The baseball game stipulates that players must wear baseball helmets when hitting the ball. Players other than professional baseball must wear helmets with double ear protection when hitting the ball; receivers must wear receiver helmets, face shields and shin guards when defending in position. Amateur baseball batters and base runners should wear helmets, and batters and base runners should wear helmets with double ear protection. Caddys also wear helmets.
