ShockEater's recoil absorbing technology is now available in a convenient and easy to use “slip-on” recoil pad! THE SHOCKEATER SLIP-ON RECOIL PAD KIT IS A SIMPLE AND EFFECTIVE WAY TO ELIMINATE HARD HITTING RECOIL WHILE CUSTOMIZING YOUR LENGTH OF PULL. The ShockEater insert, made with proprietary Nano-Poly technology, is secured inside the cover behind an elastic strap and removable for cover cleaning. To install, carefully slide the neoprene sleeve onto the end of your buttstock; no drilling or gunsmithing required. If needed, place one or more of the three included foam spacers (1/4”, 3/8”, & 1/2″) into the cover before sliding onto your gun to customize your length of pull. FOR BEST EXPERIENCE: Only the ShockEater insert fits behind the internal elastic strap. Place L.O.P. spacers in front before sliding cover onto buttstock We do not recommend using more than more than (1) of the L.O.P. spacers in addition to the ShockEater insert at one time.