Materials depend on the item: most figures and LED lamps are made from plastic; some plush Question Blocks combine fabric with plastic components; and at least one articulated figure is made from PVC (polyvinyl chloride).
Some plush Question Blocks include built-in game sounds. The Question Block lamps use integrated LED lighting (non-removable bulb) that is described as bright and is USB powered.
The Question Block LED lamp is USB powered via an attached cable and uses an integrated, non-removable LED bulb. It typically has a base toggle switch for on/off control and is listed with a maximum wattage of 5 watts.
Listings describe these lights as both wall-mountable and freestanding. One is described as a wall-mountable neon-style light (~9.2" tall) while another is noted to stand at about 14" (35 cm). No assembly is indicated for those listings.
Review summaries report the LED Question Block light as consistently very bright and describe its build as sturdy. Reviews also clarify that it uses LED lighting rather than true neon.