Hi. I really love this product because I can create different drawing/precision marking for just about anything my mind can get into. I was surprised to see that it was made in USA, so I was extremely proud of that! Everything's a bonus! And, the T-bar can be taken off if need be, but can be stored for future use. I HIGHLY recommend this product for anyone who needs precise measurements (in 1/2 increments; also, a 0.5-mm pencil is recommended. Anything larger than that will not work!). GREAT PRODUCT! SPEEDY AND PROMPT DELIVERY! A++++++++++!!! :D