Comparison : Item # NB-UIM-15, 1 to 15 Pound (lb) Carrying Capacity Black Finish Anti-Vibration Isolating Adapter
Item # NB-UIM-W-15, 1 to 15 Pound (lb) Carrying Capacity White Finish Anti-Vibration Isolating Adapter
Item # NB-UIM-20, 15 to 20 Pound (lb) Carrying Capacity Black Finish Anti-Vibration Isolating Adapter
Item # NB-UIM-W-20, 15 to 20 Pound (lb) Carrying Capacity White Finish Anti-Vibration Isolating Adapter
Item # NB-UIM-25, 21 to 32 Pound (lb) Carrying Capacity Black Finish Anti-Vibration Isolating Adapter