They won't eat it. But I would replace chewed up ones like that with new ones. The chewed areas are rough and the gliders will continue to go for the same spot.
Now that you know you have a chewer you will need to inspect toys and wheels regularly ( especially the rim on the front plate and the track if it's plastic )
If you have a larger hollow toy they can chew their way inside and be difficult to get back out. Any plastic thing with an entrance hole will need checked too if they chew the edges of the opening it can and has worn fur off and caused injuries.
Entrance holes can be sanded smooth and repaired, wiffle balls not so much lol just give them new ones when they get chewed n removed the gnarled up ones.