THis micro keylight pen is part flashlight, part micro-ballpoint pen combined in one compact and portable key ring. Two sides of the 6 sided barrel have a ruler printed on it, one in centimeters and one in inches. 

Available in black or silver

• White led light, 8 lumens
• Uses three L736 cell batteries, which are included
• Black ink refill
• Materials: aluminum/brass/steel with matte finish Keylight pen hangs from a steel chrome split ring Inches and centimeter ruler printed on barrel
• Dimensions: 3.62 x 0.47 x 0.47 inches