BURFORD-FINOCHIETTO RIB SPREADER, CHILD SIZE, 2 PAIRS OF BLADES, SPREAD: 6 1/4" (16.0 CM), ARM LENGTH: 4 1/8" (10.5 CM), BLADES: 7/8” X 1” (2.3 CM X 2.5 CM), 1 1/4” X 1 3/8” (3.3 CM X 3.5 CM), 1 5/8” X 1 3/8” (4.3 CM X 3.5 CM), 1 3/4" X 2" (4.5 CM X 5.0 CM)