... Super quality car tire studs/tire stud for vehicle tireSpecification:6.5-5.5-1, 6.5-6.5-18.0-10-1, 8.0 ... 10,9-11,9-12,9-13,9-14all the specifications can be used in motorcycle tyres,spikes,car,ATV ... and tractor Length(H)5.5mm,6.5mm,10 +/-0.15 mm,11mm, ... material of super quality car tire studs/tire stud for vehicle tire GRADECoHcDenRSHV30GRAIN SIZEJX0197.5-9.011.0-14.012 ...