Kurt Sterba’s Korner +3 FSB31-1/4, ID=1/4"/6.3mm, RFI Range 1-300 MHz, Bulk Pack of 10 FSB31-1/4-10 $24.95 In stock Quantity: 1 Add to Bag Product Details Initial Permeability (@ 10KHz): 1500 Material: MnZn Max cable size - in/mm: .25/6.3 OD (A) - in/mm: .788/20 ID (B) - in/mm: .26/6.6 Length (C) - in/mm: 1.55/3.94 Z (ohms per bead - single turn 1 MHz): 28 Z (ohms per bead - single turn 5 MHz): 83 Z (ohms per bead - single turn 10 MHz): 105 Z (ohms per bead - single turn 25 MHz): 180 Z (ohms per bead - single turn 100 MHz): 310 Z ohms (per bead - single turn 250 MHz): 240 : 10 : 2.495 Ferrite Snap On, ID = .26 in/6.6mm, Mix 31, 10 pieces. Use for AC/DC, audio/Video/data and RF (coax) cables. Save this product for later Favorite Check out EHAM reviews HERE