Inventure Engineering & Machine LLC Replacement Level Brass. We left the precision bubble level unattached because we recommend that you use the same level in the same orientation on both your rail and your scope. Specifications for Inventure Engineering & Machine LLC Replacement Level: Manufacturer: Inventure Engineering & Machine LLC Fabric/Material: Brass Color: Brass Length: 1.1 in Features of Inventure Engineering & Machine LLC Replacement Level Can be conveniently stored inside taken-down Scope Setter body. Package Contents: Inventure Engineering & Machine LLC Replacement Level Inventure Engineering & Machine LLC SS-200-A: Replacement Level Brass