Maratac Titanium Pen Driver. 5" overall. 0.5" diameter. Uses standard 0.25" bits. Stores three extras in handle and comes with 4 standard bits. Stonewash finish titanium construction with golf ball pattern knurling and pocket clip. Bulk packed. Specifications for Maratac Titanium Pen Driver: Manufacturer: Maratac Color: Silver Size: 5.5 in Condition: New Included Accessories: 4 standard bits Fabric/Material: Titanium Quantity: 1 Finish: Stonewash Weight: 0.14 lb Overall Length: 5.5 in Length: 5.5 in Package Contents: Maratac Titanium Pen Driver