Specification:Item name: 16mm / 20mm / 20 to 25mm / 20 to 30mm /25mm / 25 to 30mm / 30mm / 40mm T Tripod Tilt TeeMaterial: Aluminum alloy Color: BlackWeight: 16mm:18.7matching screw: M3x8 4pcs20mm:17.2g matching screw: M3x8 4pcs25mm:36.3gmatching screw: M4x8 4pcs30mm:62.2gmatching screw: M4x12 4pcs40mm:128.7gmatching screw: M4x12 4pcs20mm to 25mm:28.7gmatching screw: M3x8 4pcs20mm to 30mm:30.8gmatching screw: M3x8 4pcs25mm to 30mm:43.6gmatching screw: M3x8 4pcsPackage included:1pcs x T Tripod Tilt Tee