The Drop N Tell is a low cost plastic impact indicator that indicates when a g-range has been exceeded. After the unit has activated, it cannot be mistakenly reset or easily tampered with. Non-resettable. G-ranges available: 5, 10, 15, 25, 50, and 100. Standard package includes: One plastic indicator, bill of lading label, container warning label, and an instruction sheet. This is the 25G version.