이 볼링공 하나로 여러분의 '우레탄 볼링공'의 판도가 바뀝니다. Theorem 78D 씨어럼 78d 볼 리뷰

#Serum78D #UrethaneBowlingBall #78DBowlingBall #BowlingTeacherLee Hello. This is Pro Seunghoon Lee from Bowling Teacher Lee. It seems the landscape of urethane bowling balls is about to change. In this video, I reviewed the Serum 78D by throwing it myself as my main ball. I also compared it with The One 78D, Serum 78D, and Serum Black Pearl—which many of you are curious about—and honestly analyzed the differences between them through actual throws. Thank you for watching.