This SLICKER BRUSH is ideal for intensive grooming of long-haired dogs and dogs with a thick undercoat. It easily removes undercoat, loose hair and dandruff and is available in two sizes. Thanks to its fine, rounded metal bristles, loose hair, undercoat and matting are easily removed and it effectively loosens up any knots so you can look AND feel good after a grooming session with one of these! Available in 2 sizes:Size S (small): brush head 7.2 x 5.2 cmSize M (medium): brush head 9.2 x 5 cm