2 sizes Available: Large (Thumb-shown at left in red) and Small (Fingers or Small Thumb sizes shown at right in blue). 

Switch A Roo Locking Tools can be used to remove Inner Sleeves that become tight due to climate changes (expanding ball cores), loose debris that can get down into hole and under locking channel or for other uncontrollable factors. Simply insert the cone-shaped rubber end into insert hole, twist and remove.