The creative department provides a ball sleeve structure improvement department with a bag body.The bag body.The system comprises an opening.It penetrates the surface of the bag.Its overall length is less than the circumference length of the bag body；One holding space,Attached to the inside of the bag,And the opening of the bag body is in a state of communication；And a counterweight area,Attached to one end of the bag,And the weight of the weight area is greater than the weight outside the weight area of the bag body,In order to maintain the center of gravity of the bag body；In this way,The utility model provides a bag body which can hold the ball.The center of gravity of the sphere can be maintained at the lower end of the bag body when it is in use or standing.Use the bottom of the bag to increase the weight to reduce the center of gravity.And make the sphere not roll arbitrarily.A ball sleeve that enables the ball to rest on the ground.本創作係提供一種球套結構改良係有一袋體，該袋體，係包含：一開口，其貫穿於該袋體表面處，其整體長度係小於該袋體的圓周長度；一容置空間，係設於該袋體內部，而與該袋體之開口呈相通狀態；及一配重區，係設於該袋體一端處，而該配重區之重量係大於該袋體之配重區外的重量，藉以使配重區維持該袋體的重心；藉此，提供一種可容置該球體之該袋體，於使用或靜置時能使該球體重心維持於該袋體下端處，利用該袋體底部增加重量使重心降低，並使該球體不任意滾動，進而使該球體能靜置於地面之球套者。
