Reusable and Machine Washable: our breast castor oil pack wrap is free of other impurities, helps to fully absorb castor oil for better utilization, and can be washed multiple times to last you longer, which is also suitable for most breast sizes Premium Material: This castor oil pack compress is a double-layer design, the inner layer is made of cotton flannel, which is safe, soft and hypoallergenic. The outer layer is TPU material of the pack ,we've added waterproof membrane under the farbic which made it is leakproof, which is effectively waterproof and oil-proof, so you don't have to worry about castor oil leaking when you use it. How to Use: it is recommended to apply 1 or 2 tablespoons of castor oil on the inner layer of the castor oil nursing pads washable; And please wash this pad before use, pay attention to avoid the edges, and wear about 1 hour; Pregnant women should not use this castor oil pack Please notice:Castor oil not included.Just 2 packs castor oil pack wrap for breast in package.