Pack of 50 stainless steel DF-800SC50 S-Clip Breakaway StapleClips. Intended for outside tear application points on thermoplastic parts such as bumpers and clips. This staple is a specialty staple that can be used in specific areas like round curves and also in areas where there is little obstruction. When used on open area cracks for best results after submerging the staple into the plastic give a clockwise twist while the staple still hot. This twist helps to further reinforce the repair area. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.