The Lego Trans-Clear Brick is a round 2 x 2 x 1 2/3 Dome Top Part, designed as part of set number 30151. Made from durable plastic, this clear-coloured dome piece comes packaged in a polybag for easy storage and transportation. As part of the Lego brand, this trans-clear brick allows for endless creative possibilities in building and construction, making it a must-have for any Lego enthusiast looking to add a unique and stylish touch to their creations.