WOB&reg; Automatic Quilling Volume Pen DIY Quilling Paper Slotted Tools 2 Sized Batteries-Powered powered by 2 batteries(not included) comes with 2 metal slot heads, 2-sized ,fits for strips 3mm,5mm,7mm and 10mm stick the slot head with a little force till it stably fits press the button and roll itself fast,may need sometime to manage it properly A high quatliy Quilling pen,the essential tool for the beginning quiller