Listing is for a used Lipshaw Electric Laboratory Drier Model 207. Unit has been tested and appears to be in good working order; unit was powered on and remained powered to heat the heating element. No further testing was performed. The heating adjustment knob turns but we did not test its functionality. There are numerous cosmetic scratches and marks on the exterior housing. Corrosion on the interior drying wells. Lid works properly. If there is anything wrong with the item that you have purchased, please contact us directly and give. us a chance to help, we respond quickly and will ensure you are satisfied with your purchase and experience! Please do not leave negative feedback or open any disputes with eBay or PayPal. Contact us directly and we will fix the problem quickly.Fast & free shipping We strive for 5/5 Star service! Fast & Free shipping!