Condition: 100% NewProfessional chin strap buckle for any helmetA safe, fast and convenient way to securing your helmetSpeed clip, quick releaseEasily install to your helmetMaterial: PlasticColor: Black+RedDimensions: 6*2.6*1.2cmInstructions:Fix part A. Take one side of your helmet's strap through the big hole of part A and come across the metal stick in the middle,pull the strap out of the big hole from the bottom.Sew part B. You need to sew D ring of part B to the other side of your helmet's strap.Clip the male connector of part A to the female connector of part B,you can release the clip by pull the red button as arrow showing in part B.Package Contents:1 x Motorcycle Helmet Plastic Pull BuckleOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.