Tier One 7-13mm Levelling Wedge Red. Takes the guess work out of accurate scope mounting. Precision made on 5 axis machinery in one operation to guarantee maximum accuracy. Hard anodised for durability. Specifications for Tier One 7-13mm Levelling Wedge: Manufacturer: Tier One Color: Red Fabric/Material: Aluminum Package Contents: Tier One 7-13mm Levelling Wedge Nil Tier One T1SLW: 7-13mm Levelling Wedge Red