Item Floor-Mount Vibration Isolator, Isolator Type Neoprene, Capacity Range 550 to 1100 lb, Deflection 0.25 in to 0.50 in, Height 2 3/4 in, Width 3 5/16 in, Color Mark Yellow, Spring Color Not Applicable, Cap Screw Dia. and Length 1/2 x 1 in, Includes Top Bolts and Washers, Dimension T 1/4 in, Dimension MBD 1/2 in