The new air-blowing ball is very powerful and refill quickly. They are made of a nontoxic, environmentally friendly material. It is a great tool for dust particles due to it has an air valve to prevent it from breathing in dust and blows out a powerful stream of air to blow dust away. Keeping your lens clean, and getting better pictures. COMPATIBLE FOR camera lenses, binoculars, camcorders, pda's, cell phones etc.