Teflon Cable Slider FS915 The slide was developed using a Teflon filled Delrin material developed to eliminate cable slide chatter and decrease the wear on cables. This slide incorporates a hole for a fall away rest cord to be inserted along with a set screw to secure the cord. This allows for string adjustments and arrow rest tuning to be done without the possibility of damage to the bow's cable during tying and untying of the arrow rest cord.