Artist Proof of the exclusive collaboration of DotsToLines x Gorilla Glass. Each piece was handcrafted by skilled glass artisans at the extensive design and production studio in Oaxaca, Mexico. They measures to 3×3″ and weigh 122.2g a piece, perfect for ears 7/8″ and larger. These come in their own specially designed box with its certification. Those pairs marked as an Artist Proof.