The Case Leather Trapper Sheath 00980 is perfect 

for 4.1 in. long (when closed) pocket knives. 

It is made in the United States from top-quality leather. 

The front is adorned with the name 'trapper'. 

It is, as such, made for the Case Knives Trapper. 

The inner measurements of this sheath 

are (approximately): 4.1 x 0.9 x 0.6 in.