Designed for use with Standard Housing, Blackout Housing; Provides colour correction in blue salt water or clear fresh water; Colour corrects at depths of 4.5m to 21.3m; Ideal for sunny, tropical locations like the Bahamas; Filter snaps into place for quick, tool-free installation; Scratch-resistant, optical-grade glass to guarantee optimal image clarity; Includes a carrying bag and camera tether; :: Unisex > iPod Accessories Size: one size.