Adjustable tension knobs contribute to a personalized and fatigue-free grooming experience.,All in one： This set includes one 7″ straight shear, one 7″down-curved shear, one 7″ up-curved shear,one 6.5″ thinning shear and one comb, making you enjoy a comprehensive grooming experience: you can tailor your grooming approach to different coat types, lengths, and styles for a polished finish.