Designed to fit shallow, roundback-shaped, acoustic guitars, the 1SKB-16 guitar case incorporates a proprietary-engineered, rubber-modified, styrene shell and rigid EPS interior foam that cradles the guitar securely and absorbs shock. The hardshell guitar case"s molded-in bumpers provide maximum protection for the aluminum valance.This SKB guitar case features their patented fiberglass-reinforced, nylon trigger-release latching system with the inclusion of a TSA-recognized and accepted locking latch. The TSA lock enables you to lock your guitar case yet still be inspected for airline security. The TSA logo notifies TSA screeners that the latches do not need to be broken for a security check. A cushioned-rubber, over-molded handle for comfortable carrying with molded-in feet and convenient stacking wells are all part of the exterior contours that provide added convenience when transporting multiple instrument cases.