Adams Invoice Unit Sets, 7.44 x 8.5 Inch, 3-Part, Carbonless, White/Canary/Pink, 50 Sets per Pack (NC3872-50) 3-Part carbonless Invoice Unit Sets (White/Canary/Pink) Item is Invoice sheets, it is NOT a book. 50 sets per package - 7.44 x 8.5 inches Space at top for company stamp, Ruled format Made in the USA