External Power Pack for Nikon External Flashes (SF-17N)

Model: SF-17N
Designed for NIKON SB-11/SB-20/SB-22/SB-24/SB-25/SB-26/SB-27/SB-28/SB-28DX/SB-80DX/SB800
Powered by 6 x 1.2V/1.5V AA batteries

Dimensions: 2.72 in x 6.22 in x 0.98 in
Weight: 8.64 oz