Aluminum Notebook Case for Apple 15in PowerBook - RadTech MacTruck - Aluminum Designed for extreme duty - nothing is tougher or more compact Allows full, unrestricted use of a notebook while inside case - ports and drives fully accessible Aids in cooling via 5mm bottom case air channels and excellent heat conduction of Aluminum shell Dual steel alloy slam latches able to withstand relentless abuse for years - fully serviceable High-density internal cushioning provides a high level of impact resistance