■ Product Specifications 【Size】 Approximately 42mm 【Weight】 Approximately 4g 【Colors】 Red, Yellow, Blue ■ Product Description This product is a set of 15 urethane sponge balls for golf practice. The colors are rainbow-colored, based on red and yellow. This product is recommended for those who want to increase their driving distance in golf. Lines are drawn on the balls so you can see the ball flight. Because they are soft urethane sponge balls, they are perfect for practice in your home garden, etc.