No more bloody fingers, no more torn fingertips from removing the cheap backs from your pin book. Low profile for a comfortable fit; it is only 7mm tall and 10mm in diameter. The harder you pull the pin, the tighter it grabs your pin. Work as good as the one with set screws; easily unlock from the rear. Great for Disney Pins, Harley Pins, Military Pins, Name tags, Badges, Medals, Insignia and all pin post pins.