6 Colors: the package comes with 12 pieces dryer balls for pet hair removal in 6 colors including light blue, blue, grey, black, purple and rose red, sufficient quantity for daily use and can be applied to in washerSmall and Save Space: each reusable dryer ball is approx. 3.5 cm/ 1.38 inches in diameter, small enough to save the space of washing machine, even is convenient to store; These pet hair remover dryer balls are made of nylon, non toxic, reusable, durable and sturdy, helping to shorten drying time, reduce wrinkles and prolong the lifespan of clothes and towelsHow to Use: step 1, put the clothes into the washing machine ( not limited to the type of washing machine) ; Step 2 put the detergent into the washing machine; Step 3, according to the clothing category, put in the pet hair remover balls and turn on the laundry mode, the laundry ball is reusableGood Helper for Cleaning: these laundry balls can effectively remove hair, it can also reduce rust and lime accumulation in washing machines, even can reduce dust and odor, keeping clothes clean; Not recommended for use in the dryerAlternatives of Dryer Sheets: these pet hair remover balls can remove hairs and lints from clothes, for clothes with hard materials such as coats and trousers, can use 7-9 laundry balls; For soft clothes such as underwear, T shirts, shirts, etc. can use 4-6 laundry balls; Generally, for a 5kg laundry task, 24 balls are put in, and they are put into the washing ball machine together with the clothes for washing