Soft material that feels painless and has a new feel. With 160 hook-shaped brushes, even fine dirt can be cleaned. The head with a small protrusion makes you comfortable with moderate stimulation. Remove the head part from the body, rotate it 180 degrees and fix it to the main body (please insert until it clicks). Since this is a resin product, please do not bend it with strong force. The heads can be washed with water. However, never wash with detergent or chemicals. Do not push too far into the back of your ear to avoid damaging the eardrum or ear canal.