How to use: Two batteries of No. 5 (not included) The circuit board is boosted, and 80% of the fleas stun or die after being contacted by the front comb; A gentle charge can kill fleas without harming pets; Simply comb the pet's fur; Suitable for cats and dogs, pets of all ages and lengths. Colour:white+blue Material:plastic Size:26*17.5*5 cm Package Contents: 1x mites (battery models do not contain batteries) 1x opp bag packaging 1x instruction manual Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.