Nikon WG-AS2 Water Guard for the Hot Shoe of the D300 Digital SLR when using the SB-910 or SB-900 Flashes Nikon WG-AS2 Water Guard - Nikon 1 Year Warranty Nikon WG-AS2 Water Guard for the Hot Shoe of the D300 Digital SLR when using the SB-910 or SB-900 Flashes