The Adrian Lewis Stone Zirconium Darts are available in 21, 23 and 25 gram.
This is the current Target Darts packaging - signature Adrian Lewis flights with Laro shafts the barrels are guaranteed weight certified to be within .05 of a gram of each other.
The actual barrels are manufactured from 90% Tungsten, the Stone Zirconium Darts feature Titanium Nitride Coating together with Target’s unique non-slip Stone coating resulting in a hard wearing total grip.