1)High quality 2)Stainless steel 3)Assembly to the grille Teeth ss, nylon, ABS, pitch 100 mm ~150 mm grill gap determined by userChain ss, centre distance: 100 mm ~150 mm thickness 4 mm,5 mmSmall shaft sleeve ss,retaining ring.φ16,φ18,φ25.Big shaft sleeve ss, nylonhttp://www.huanbaoshebei.cc Grille Accessories