Put the natural anesthetic properties of cold to work. Instant cold packs provide temporary relief from the pain associated with minor bumps & bruises. Compact size fits neatly in first aid kits. Single-use design helps minimize the potential for cross-contamination. Easy-to-use packs activate instantly, so there's no waiting before application. Width: 5"; Depth: 4"; Number of Pieces: 1; Description: Instant Cold Pack, 5 x 4.