Modular design fits any number of wrenches in a set, Modular design fits any number of wrenches in a set Fits size range 6mm to 38mm or ¼” to 1 ½”, Compact design works well with all wrench types including offset, combination, open end, stubby, and ratcheting, Identification labels included to easily see wrench sizes, Innovative geometry aligns wrenches for a uniform presentation, features strong magnetic mount.