Used Sony KP-51WS510 Blue Picture Tube (Complete with lens and circuitry boards) with Delta Digital 260 Lens. Picture tube p/n A-1604-493-A, for use with model KP-51WS510 Sony. Unit was recently retired and is in good shape, lens is clean and unmarked. Sold as pictured. 30-day money back guarantee. 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!