Fusion® Multiple Use Earplug, Thermoplastic Elastomer,Blue White, Corded no checkout Bacteriostatic additive refill Eyewash unit should Bacteriostatic additive refill Eyewash unit should be inspected regularly and water in unit should be changed at least once every six months One 8 oz bottle will preserve up to 20 gallons of potable water for up to six months 360 degree grip zone allows grip anywhere on tool Dependable product with replaceable motor brushes Electronic feedback for consistent power at lower and mid range speeds High performance motor supports tough applications Maximum comfort for improved control Advanced air pocket design features internal noise blocking fins Rounded flanges tapered shape fits better in the ear canal Firm stem facilitates easy insertion and removal Four flange profile creates better seal in the ear canal Less pressure in the ear canal eliminates that “plugged up” feeling