Check the listing for details. Bose Spatial Control Receiver 551 Flip-Down Door Repair Hinge Model 108787. Condition: New. Listed at 19.95 USD. The Bose Spatial Control Receiver (SCR) Model 551, Part #108787 is a Beautiful example of Vintage audio, and Industrial Design! However over time the Plastic Hinges for the Flip-Down door Fatigue, and Break which destroys the original look, and functionality as the inner door is the Label for all the Controls! Having serviced many of these it became clear this is a chronic problem, so in the spirit of Dr, Bose we solved a problem through engineering and recreated a NEW Plastic Hinge with the wonder of Precision 3D Printing. We reverse engineered the Part in CAD, Prototyped, and Tested with excellent results! So issue resolved, once and for all! As mentioned these are Precision Printed on a 3D fabrication Machine in very small batches, and each part receives its final trim by hand which is time consuming, so the price is indicative of the engineering time, machine time, and Labor that goes into creating each and every one of these! I do offer a small discount for multiple quantities. Shipping: Calculated by location, USPS First Class w/Tracking. Warranty: 30 Day Warranty, if you’re not satisfied with this product, return it for a full refund.