SUBANG 30 Pieces Metal Pin Backs Locking Pin Keepers Locking Clasp with Storage Case

Description Feature: This listing is for 30 pcs Low Profile Locking Pin backs/Pin Keepers-Highest Quality, Best Available; Suitable for all pin post pins, especially for disney pins, harley pins; Great alternative to those standard butterfly clutches and the rubber backs; These pin backs are very easy to use; No Tools Required; Just push on the pin back to the pin nail and it is locked; the harder you pull the pin, the tighter it will lock; pull the spring loaded botton at the rear, then the pin will be released ! Low Profile, smooth surface, No finger stabbing, No pin post protruding any more! Specification: Material: nickel-plated copper Product Size: circumference approx 15cm/5.9 inch(unstretched);