Comparison : Item # CIR-3.00-1-SS, Channel & I-Beam Roller
Item # CIR-3.00-1-SS-R, Channel & I-Beam Roller
Item # CIR-3.00-1-SSP, Channel & I-Beam Roller
Item # CIR-3.00-1-SSP-R, Channel & I-Beam Roller
Item # CIR-3.00E-SS, Channel & I-Beam Roller