The RioRand Gun Trigger Lock is preset at 0-0-0 – Easily reset it to the combination of your choice by simply pressing a paperclip to the reset button Set-your-own password combination Gun Trigger Locks. Resettable combination locking mechanisms for keyless convenience Durable Material Construction Positive locking with adjustable ratchet mechanism. Protective rubber pads shield can protect gun finish from scratching The RioRand bb gun locks separates into two halves when opened and locks with an adjustable ratchet mechanism for a snug fit