Specifications Brand FBB Shell material ABS hard shell Internal material thick velvet Fixing method Velcros Size Small 35 5 125 5cmMedium 38 5 15 5cmFeatures ● Soft and thick anti collision and anti vibration● Robust and durable widely used● Small size case support 60 61 64 68 key keyboard 78 84 key keyboard can be installed but may be a bit crowded● Medium size case support 87 keys keyboard keyboard of length less than 38cm are all supported ● Keyboards with length width and height smaller than the inner dimensions are all supportedPackage Includes 1 Mechanical keyboard storage case