Fits scopes up to 10? in length with up to a 40mm lens. Allen?s patented Scope Cover protects your scope or non-magnifying scope from dirt dust and scratches.  Reversible with Mossy Oak Break-Up Country and Black. This scope cover easily stretches to cover your scope in seconds and is tight enough that it won?t accidentally come off.  Great for use in the field or to protect your scope in storage.