Blackie Collins Blackie Collins ButtonLock A/O. 4" (10.16cm) closed. 3" (7.62cm) partially serrated blade. Thumb stud. Pocket clip. Weight: 1.4oz. Black glass-filled polymer construction. Hang packaged. Specifications for Blackie Collins ButtonLock A/O BCSB: Manufacturer: Blackie Collins Blade Length: 7.62 cm 3 in Closed Length: 4 in 10.2 in Blade Material: Stainless Steel Knife Application: Everyday Carry Pocket Knife Serrated: Partially Serrated Overall Length: 17.78 cm Handle Color: Black Lock Type: Button Lock Opening Method: Assisted Opening Sheath Material: No Sheath Weight: 1.4 oz Package Type: Other Color: Black Blade Type: Folding Blade Package Contents: Blackie Collins ButtonLock A/O