Ideal for gently soothing minor owes while comforting your little one. Each set includes 1 boo-bonnie and 1 bisphenol free plastic Boo cube pre-filled with distilled water. 100% polyester; to wash boo-bonnie remove Boo cube; machine wash and lay flat to dry. Boo cubes may be washed in warm soapy water and air dried and are also top rack dishwasher safe. Available in pink or yellow bunny, and blue mouse.