Sea & Sea DX Macro Lens Port 52 for Canon EF-S 60mm f/2.8 Macro USM Depth rating: 100m / 330ft Dimensions: 132x62.5mm / 5.3x2.5inches Weight: Approx. 360g / 12,7oz Construction: Corrosion-resistant alminum alloy (anodized) + Tempered glass (multi-coated)