Black 1/2 size 4-string double bass case, highly protective with durable materials. - Color: Black - Size: 1/2 42-inch Thank you for viewing. This is an Eastman double bass soft case, which is sold on Amazon for 36,500 yen. I purchased it, but I'm selling it because I'm using a different case. It is brand new, unused, and unopened. The product link is as follows: https://amzn.asia/d/1sYEW8q