Incase have expanded their Perforated Collection with new perforated styles for iPhone 4 and MacBook Air. “Available in Black and White, the Perforated Slider Case looks great in both a tonal or contrasting pairing, so whether you’re using a black or white iPhone, either way you go, it’s sure to add visual interest.” Available for 11″ and 13″ MacBook Air, the case is a perforated hard shell case in Black, White and Blueberry, a slim case with added protection.