Combo pack: 1 piece DMM-11A (DMM11) and 1 piece DMM-44/100 (DMM 44 100) Digital multimeter replacement Fuse (Fluke) 11A, 1000V Fuses, Fast Acting and 44/100A, 1000V This combo pack has 1 piece of DMM 11A and 1 piece of DMM-44/100 DMM-11A dimension: 0.406" Dia x 1.500" L (10.30mm x 38.00mm) DMM-44/100 dimension: 0.406" Dia x 1.375" L (10.31mm x 34.93mm) DIGITAL MULTIMETER REPLACEMENT FUSES; Construction - Melamine Tube