The 5" x 10" mirror finish Stainless Steel Inking Slab and the 4" x 10" Glass Inking Slab are ideal for consistent quality in rolled inked fingerprinting. Simply apply a small amount of the Black Fingerprint Ink to either slab and roll to a thin layer with the Fingerprint Ink Roller. Fingerprinting may then proceed without the risk of excessive inking associated with many low quality fingerprint ink pads. The unbreakable Stainless Steel Inking Slab is also recommended for field work.