24" wide when unrolled. 14" x3" when rolled up and will expand out several inches fatter depending on size and quantity of wrenches loaded inside.
12 internal slots range between 1.75 and 2.5" wide and will each hold multiple wrenches each slot.
We have given you extra velcro so you can secure the lid no matter the length of wrenches you choose to carry.
Two adjustable straps keep your roll closed up and will tighten from the smallest load up the the largest.