save your money buy one with bettter adjustment knobs [SEP] you get what you pay for the tightening knobs are all plastic not even very strong plastic first time i adjusted the height and tried to use it it fell back to starting position almost messed up a nice tattoo after i readjusted it and tried tightening it a little more the knob broke reveling a cheap philips screw melted on the inside to hold it to the knob only reason i am not returning the product is i am a little creative and made it work i will add pictures if ppl wanna see what i am talking about