I drive truck for a living. I have been looking EVERYWEHRE for a pen clip. USEFUL in a truck. Nope. Seems nobody makes them so FINE I made my own. I decided to share. Holds 4 Pens. I sand the back a little, clean it up with acetone and use 3M double sided clear tape. Works GREAT. Obviously it won't hold every pen because of sizes but it does hold the BIC Atlantisd very nicely. Which is a good smooth writing, comfortable, and inexpensive pen.