THE 9 bowling shoes require a special patented interchangeable sole design that comes ready to fit specified sizes

because each bowling shoe is shaped differently

you would order size 4 from the drop down menu

(2) Newly Designed 5" Wheels for Increased Mobility and Stability

022 (for a 15# ball)

Track Proof Hybrid Bowling Ball Weight:15 lbs. THE 9 bowling shoes requireTrack Proof Hybrid Bowling Ball Release Date: 1 14 21 Do you need even more proof? Track has got even more Proof in the form of a Hybrid high performance bowling ball. This ball combines the best of the pearl and solid versions to offer a strong mid lane reaction and down lane continuation on medium to heavy oil. Color: Red Black All colors do vary somewhat from the picture shown Coverstock: Prime Response Hybrid Core: Proof Finish: 500, 3000 Siaair