The package includes the spare screws and tools to fasten the screws. This ruler is FULLY ADJUSTABLE: Narrow end:5 to 30mm: Wide end: from 10 to 40mm; Length/Height: from 13 to 25cm
The Rotary cutter has a gap(sliding track) which is especially designed for the universal ruler. Recommended to buy it together.
With this set, cutting different tapered flat band set is no longer difficult.