L-shaped interdental brushes in a thick type, size 5 (L).
Features
10 brushes per pack
Made in Japan
Package size: 8.2 × 1.6 × 17.6 cm
How to Use
Insert the brush slowly and straight into the space between teeth, keeping it horizontal. Gently move it back and forth a few times to brush. Do not force it in or use excessive force. The source recommends replacing the toothbrush with a new one every three months.