... ear plug Sleeping and Swiming earplug 1. Many kind of shapes and colors 2. good appearance & competitive price Round ... , Noise reduce environment.Under ANSI and CE standard.1. Material: made of synthetic wax formula, non toxic. 2. Cord available3. SNR ... in bag, plastic box, and depended on requipment.7. Use when travelling, learning, sleeping, swimming, ectOEM welcome earplug made of synthetic wax ...