PetAJ is an online pet and animal-supplies store offering a broad assortment for companion animals, livestock, and the home and garden. Its catalogue covers dogs, cats, small pets, birds, fish and aquariums, reptiles, horses, poultry, and farm animals. Shoppers can browse food and treats, including dry, wet, and veterinary diets, alongside bedding, cages, carriers, bowls, toys, leads, collars, and other everyday accessories.

The store also lists grooming products, health preparations, supplements, aquarium equipment and water treatments, terrarium substrates, heating and lighting, and specialist feed and care products for horses and livestock. Beyond animal supplies, PetAJ carries selected home and gardening goods, such as watering accessories, weed and pest control products, solar garden lights, fertilizers, and seeds. The website promotes free delivery on orders over PLN 199, dispatch within 24 hours, secure payments, a 14-day return period, and customer help and advice.

Its range includes products from established brands such as Royal Canin, Trixie, Aquael, Tropical, and Versele-Laga, serving owners and caretakers seeking supplies for a variety of animals