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).
 
Provides comfort and prevents contact with horn
Stylish leather exterior
Comfortable padded neoprene lining
Embedded lining prevents moisture corrosion

Instructions:
Simply wrap the Neck Guard where the horn rests against your neck.
Secure using the hook and loop fastener.
Dimensions: 7.0 x 3.5 x .12″ (177.8 x 88.9 x 3.0mm)