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(NOTE: This version uses a 2mm screw diameter, which is the size Titan Master Nucleon uses.)
This set consist of a Titans Return compatible faceplate that can be installed on most Titan Masters (but nominally for Titan Master Nucleon) and a Bucket Helmet that can be worn over him in Head Mode. The resultant combination is suitably scaled for a Leader class figure, specifically Combiner Wars Leader Megatron.
Bucket Helm can be attached to any 5mm diameter peg and serve as a armoured cupola for any Titan Master to stand/sit in.
Due to varying tolerances between small parts, some adjustment will be necessary to get the faceplate to fit a Titan Master. Chest screw might snap faceplate screw hole, but attachment functionality should be retained.
This set has been successfully tested in White Strong Flexible and Frosted Ultra Detail.