Agent 18?s collection of cases breaks down into four types: the company?s basic ?Shields? are two-piece clear plastic shells, glossy in some places and frosted in others, while its ?EcoShields? are made primarily from black plastic. It also sells ?Shield Kits? that come with an additional accessory at a higher price, and now has introduced the ?FlowerVest,? a flowery rubber case for the third-generation?

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