Plastic Adjustment Lanyard Buckle, Anti Slip Cord Buckles, Rope Adjuster, BlackSize: about 10mm long, 6mm in diameter, hole: 4.5mm.1.Plastic Silicone. Suitable for:elastic band, cord adjuster. 2.Effectively reduce the pain and pressure of wearing rope in the ear for a long time.Wear it in the most comfortable state. 3. This buckle can effectively keep two side in place, for better protection. Adjustable design, easy meet you different tightness need.
