SOG Specialty Knives & Tools Pentagon Xr - Blackout . This Folding Knife from SOG Specialty Knives & Tools uses an ambidextrous XR locking mechanism with three different ways to open. The SOG Specialty Knives & Tools XR Pentagon Folding Knife comes equipped with a cryo CTS-XHP stainless steel wide spear point blade that will be sure to provide you with year after year of reliable and effective use. For a great way to make sure you are cutting with the best possible knife for any application choose the SOG Specialty Knives & Tools Folding Pentagon XR Knife. Specifications for SOG Specialty Knives & Tools Pentagon Xr: Manufacturer: SOG Specialty Knives & Tools Blade Length: 3.6 in Closed Length: 4.77 in Serrated: Non-serrated Overall Length: 8.38 in Handle Finish: G10 Blade Finish: Black Titanium Nitride Blade Shape: Spear Point Lock Type: XR Weight: 4.9 oz Color: Blackout Package Contents: SOG Specialty Knives & Tools Pentagon Xr - Blackout