CHAMP's Scorpion Stinger spikes are non-clogging and made with a soft durometer TPU for comfort and durability. Wrench holes formed in a more rigid material hug a "C" wear indicator which turns solid when spikes need replaced. Spring-flex traction elements provide optimum gripping ability and the low-profile, green friendly design minimizes marks on the green. Fits all shoes that utilize a SLIM-Lok(R), Tri-LOK(R), or Fast Twist(R) system. FEATURES: Low profile, green friendly design minimizes cleat damage/marks on the green Non-clogging Soft durometer TPU for superior comfort and durability SLIM-Lok system(R) quickly locks spikes into place with less than a 1/4 turn Unique wrench holes control torque in and allows high torque for removal "C" visible wear indicator turns solid when spikes need to be replaced Fits all SLIM-Lok(R), Tri-LOK(R), and Fast Twist(R) shoes 18-Pack CHAMP