While it is not APEX RPV fast, it is still super quick and installation is a snap! Meet the Rapid Connect Valve! Finally, a FAST screw on deflator that stays in place! This innovative Patented design makes it quick and simple to air down without the need to dismount your tires. Simply remove your existing valve stem core and screw the RCV onto your existing valve stem and you're ready to go! Install takes 5 minutes or less for all 4 tires. Includes "Time to Deflate" decal and multi-tool for easy installation. IMPORTANT INSTALLATION NOTE: BEFORE INSTALLING YOUR RCV'S IT IS IMPORTANT THAT YOU CHECK THE TIPS OF YOUR EXISTING VALVE STEMS FOR IMPERFECTIONS. THE END/TIP OF YOUR VALVE STEMS NEED TO BE IN PERFECT CONDITION BEFORE YOU INSTALL THE RCV. IF THEY ARE NOT IN PERFECT CONDITION USE A FINE GRIT FINGER NAIL FILE TO FILE THE TIP FLAT AND SMOOTH. IF YOU DO INSTALL THE RCV AND HAVE A LEAK YOU WILL NEED TO REMOVE THE RCV FROM YOUR VALVE STEM AND FILE THE TIP DOWN SQUARE AND FLAT, THEN INSTALL 3 to 4 WRAPS OF TEFLON TAPE TO THE THREADS OF THE VALVE STEM. THIS SHOULD RESOLVE ANY LEAK THAT MAY OCCUR.  PLEASE NOTE: INSTALLATION TOOL AND TIME TO DEFLATE DECALS ARE ONLY INCLUDED WITH SETS OF 4 AND 5 RCV’s. IF PURCHASING A SINGLE (1) RCV (SKU X02-02-015) IT DOES NOT INCLUDE AN INSTALLATION TOOL or DECAL.  For example, if you purchase 4 singles you will not receive an installation tool or decal.