This is an excellent device and makes good plectrums easily, but similar to others experience, the casting on mine eventually broke when trying to make a plectrum out of appropriate plastic.The break revealed that the casting was full of air bubbles, so inevitably not very strong. I liked it so much that I will be ordering another one,but just beware,the casting may be very weak! I'd give it 5 stars for the design, but only 1 for the build quality, but at 8 quid,it soon pays for itself if it doesn't break