Between expression
A BETWEEN expression can be used to filter when a value is between two values.
The syntax to use a BETWEEN expression is:
<operand> BETWEEN <min> AND <max>
(which is equivalent to <operand> >= <min> AND <operand> <= <max>, but will compute the operand only once)
For example:
findit -w 'size BETWEEN 1024 AND 2048'
Will list the files whose size is between 1024 bytes and 2048 bytes.