Bionicle Mask Skull (Type 1), a LEGO element released in 2015. This specific variant is often referred to as the "Wide" version and is identified by LEGO Part #20476. Product Details Part Numbers: LEGO Design ID 20476, Element ID 6115785. Official Name: Bionicle Mask Skull Type 1 (Wide). Common Colors: Titanium Metallic, Pearl Dark Gray, and Flat Silver. This mask is the Titanium Metallic (also known as Pearl Dark Gray in some marketplaces). Original Sets: This mask was included in several 2015 LEGO Bionicle sets, including: #70791 Skull Warrior. #70795 Mask Maker vs. Skull Grinder.
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