- For Size Reference
The Bestech Tonic by Colin Maisonpierre of CM KnifeDesigns, offers a lock back unlike any other with ceramic ball bearings, allowing it to open and close effortlessly by reducing the metal-on-metal contact. He calls it the "Inset-Ball Back Lock" or IBBL for short. Open the knife with the lock back in a thumb flick or middle finger reverse flick fashion and it's ready to use. It is a fantastic EDC, high functioning and great-looking knife to add to your collection. This is the knife you want close by as it is a helpful tool to have. There are a variety of colors and designs to look at to choose the knife for you!
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