The Large Dog： For Large dogs 51-90 lbs For Short Hair : 4″ deShedding edge designed for coats shorter than 2 inches For Long Hair : 4″ deShedding edge designed for coats longer than 2 inches The Medium Dog：For Medium dogs 21-50 lbs For Short Hair : 2.65″ deShedding edge designed for coats shorter than 2 inches For Long Hair : 2.65″ deShedding edge designed for coats longer than 2 inches The Small Dog：For Small dogs up to 20 lbs For Short Hair : 1.75″ deShedding edge designed for coats shorter than 2 inches For Long Hair : 1.75″ deShedding edge designed for coats longer than 2 inches Reduces loose hair from shedding up to 90% on regularly groomed dogs Specification： 100% brand new and high quality The grip handle keeps your hand in a natural position to reduce fatigue. Non-slip rubber coating provides greater control for safe, effective mat removal with minimal effort Suitable for pet fur grooming and daily massage It make your pet fur shinier Round, smooth head and wouldn’t hurt your pet Comb pet’s hair with no effort Quality durable usability Type：Dog Grooming Brush Material：pvc+ABS Sub-Type：Stainless Grooming Brush Colour：As Shown Size：15.5*11cm