18.9 x 15.4 inch Paper Cutter / Trimmer With Wooden Base

Features:
Self-sharpening wooden blade cuts everything from tissue to heavy mat board.
Alignment grid and ruler for accuracy.
Safety spring washers secure handle in any position to prevent accidental falling.
>Safety finger-guard rail and blade lock.
Sheet capacity based on 20-lb, approx 12 sheets.. Stainless steel blade with latch hook.
It will be your best choice.

Wooden Board, size 18.9 inch x 15.4 inch(48cm*38cm)

Instruction:
Put the trimmer on a firm, solid surface before use.
Lift the blade up and slide the paper under the paper adjuster.
Adjust the paper to desired position with the magnetic paper adjuster on the base of the trimmer
Hold the paper on the base with your hand.
Press the blade down firmly until it stops.
Lift the paper adjuster up and take the trimmed paper off.
Lock the blade to the safety locking device when the trimmer needn't to using.