Child-resistant (CRC) closures, are often called as child-resistant caps or safety caps, and are used to reduce the risk of a child poisoning by consuming hazardous materials or chemicals. This is 38-400 white ribbed push and turn cap features a pressure-sensitive foam liner PS113. The liner is designed to be used as an inner seal for dry products. Child resistant closures are often used on prescription drugs, over-the-counter medications, nicotine products, pesticides, household and industrial chemicals. Note: Pressure sensitive liners provide an extra level of protection in that it actually creates a seal that sticks to the rim of the bottle.