Rubber Arm Pad Kit (Set of 4 Pads) for Ammco, Ben Pearson & Challenger Lifts Fits Models: Ammco / Ben Pearson Models LASO7, LASO9, LMP9, NDF7, NDF9, NDL5, NDL7, NDO7, NDO9, and Challenger 64000, 70000, 71000 Models Overall Size (US Standard): 4-7/8” x 3-7/8” (4.875 x 3.875 in) Overall Size (Metric): 123.825 mm x 98.425 mm Arm Pad Depth: 7/8” thick (0.875 in / 22.225 mm) Arm Pad Shape: Rectangle Arm Pad Material: Rubber Connection Type: Screw on Style Fasteners Included Special Notes: Screw on style – Rubber Arm Pad. Content Listing: (4) Rubber Arm Pads. Hardware Included.