Wilson Shift 99/99L Pro v1 Transparent Bumper and Grommet Set Nets Vented areas around the midfoot

Vented areas around the midfoot ensure maximum breathability

Head Size: 491cm2

A large 42mm cap entry ensures quick and easily refilling at race aid stations

The string pattern is 14x18 and the recommended tension is 25-29 lbs

Durable:Durable OOfoam holds its cushion and support

Wilson Shift 99/99L Pro v1 Transparent Bumper and Grommet Set Nets Vented areas around the midfootSTOCK# WR8442301001 Grommet sets are the plastic components located on the top of the racket and around the head and throat, which insert into the holes in the frame in order to protect the strings. Over time, the grommet sets can get worn over time and need to be replaced. The typical areas of the grommet set that wear out are the bumper strip at the top of the head and occasionally the grommet holes, which can crack split and lead to premature