The sizes shown above refer to the shell size of the drum, the internal dimensions of all our cases take into account all hardware. All our snare cases will accept oversized snare mechs & throw offs. All our snare cases will accept a snare with shell depth up to 1" deeper than the product code depth. EG: a 12" x 6" snare will fit inside a 3012 - 12" x 5" snare case. If you require a shoulder strap for this product check out model 9031 Strap-On. This product only comes in one colour.