This is a Bam clarinet double case. It holds one B♭ clarinet and one A clarinet. I've used it about 10 times. I think it's one of the lighter double clarinet cases. There's a small amount of white staining, though it's not very noticeable (see image 3). Please note that a shoulder strap is not included. Case weight: 1.3kg External dimensions: 54 x 24 x 12cm