The C4 Explosive is a compact, rectangular block with smooth, slightly rounded edges, measuring approximately 20cm in length, 10cm in width, and 5cm in height. Its surface is covered in a dull, olive-green military-grade plastic wrap, with a subtle textured pattern for grip. A small, rectangular detonator slot is visible on one end, alongside faint, white stenciled markings indicating handling instructions and explosive yield. The overall design is utilitarian, with no decorative elements, emphasizing functionality and ease of use in combat scenarios.