Protec's Padded Leather Neck Guard provides neck comfort and prevents contact with the horn. Features a stylish leather exterior, comfortable padded neoprene lining, and an embedded lining to prevent moisture corrosion. Available in 2 sizes: Straight Trombone (model L228) and Trigger Trombone (model L229).Instructions: Simply wrap the Neck Guard where the horn rests against your neck. Secure using the hook and loop fastener.