BDS BAO DUN SAFETY Earplug Dispenser for Workshop Office Noise Reduction Hotel Soundproof Factory Noise Protection Earplug Distributor Refill (500 Pieces)

1. One hand holds the earplug by the handle.

2. Use the other hand to press the bottom of the earplug.

3. Rotate the earplug gently with fingers for about 30 seconds until it expands.

4. Insert the earplug into the ear canal, ensuring a snug fit.