Specially designed circular sponge for use with Studio Tech foundation. Pro-quality. Highly efficient. Provides flawless distribution and blending of Studio Tech and other foundations. Washable/reusable. Pack of two. MAC does not test on animals and never asks others to test for them. Some governments conduct animal testing to prove safety before selling MAC products. MAC is working toward a cruelty-free world and is taking steps toward that goal every day.