The Gravity Shields were Nuhvok-Kal's tools, which it used to channel its gravity powers. It could be used to make a target became lighter than air, and float away, or make its target denser, and cause them to sink into the ground. During Tahu Nuva's first encounter with Nuhvok-Kal, the Bohrok used its gravity shield to increase Tahu's weight, causing Tahu to sink into the ground. After being fed energy through Nuva symbols, Nuhvok-Kal was unable to control the symbols' power, and the shields backfired onto themselves, causing both Nukvoh-Kal and its shields to implode.
Two Gravity Shields were included in the Nuhvok-Kal set released in 2003.
Two Gravity Shields were included in the Keetongu set released in 2005.