Tri-Lok, Champ Spike Fastening System: unsurpassed comfort unparalled traction innovative wear indicator easy to change easy to clean twice the durability of nearest competitor green friendly PinkStyles: Q-Lok System - 18 spikes:The CHAMP Q-LOK System eliminates the traditional threaded system for fastening spikes to shoes Q-LOK incorporates a patented design based on two interlocking triangles A female receptacle in the shoe sole and a male receptacle on the spike Q-LOK simply requires downward pressure to be applied on the spikes while making a quick 1/4 clockwise turn to lock them in place A reverse turn will unlock the spikes. These also fit shoes using the QFit system.Tri-Lok System - 16 spikes: The new CHAMP Tri-Lok System is equipped with three threads and our patented one-piece locking ring The ring keeps dirt and debris out of the shoe's receptacle, which protects the receptacle and makes spike changing easier Spikes with the CHAMP Tri-Lok System fit shoes by Foot-Joy, Dexter and all shoes using the Fast-Twist system.Small Metal Thread (6mm) - 22 spikes:The steel thread makes it easy to insert and remove spikes, and reduces the occurrence of lost spikes The metal-to-metal contact provides a secure attachment between the shoe and the soft golf spike Small thread replacement spikes accommodate a wide variety of golf shoe brands