TA-2 Series thumb hole tapes: Five different varieties of tape allow every bowler to get the perfect amount of grip for their game Apply the TA-2 series tapes in the thumb hole on the underside of the thumb hole against the pad of the thumb. TA-2b has the most grip down to TA-2f which has the least. The TA-1 series offers even less grip. Apply the TA-2 Series Tapes in the thumb hole on the underside of the thumb 5 different varieties of tapes allow every bowler to get the perfect amount of grip for their game! TA-2B provides the most grip and TA2F provides the least grip