Features:All decals are waterproof, and made for indoor & outdoor.No drilling required. These spike strips come with grade dual-side tape(very high bond) that becomes stronger with time.They are applied directly to the top of the helmet or fairing just peel off and apply.Length is easily adjustable to your helmet with the use of scissors just cut off to downsize or purchase two to upsize.100% New.High quality and soft rubber make them on your helmet perfectly,and convenient to diy cut.Will not hurt your helmet.Easy to peel and apply. Adheres with dual-side tapeFitment:Fit for any type of helmets(Warhawk can easily be cut to shorter lengths as needed to fit your helmet,Warhawk can be cut shorter for smaller helmets )Install:Make sure you wipe your helmet well before applying the rubber warhawks. is best,detergent is 2nd best.Specification:Material: ABScolor:black + redShape: pointedSize: 33.5 * 5.0 * 1.8cm / 13.20 * 1.98 * 0.71 inch (length * width * height)Fitment:Add to any helmet or ridePackage Contents:1 * arc with red stickerOnly 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.