The opening of each slotted jack pad is 0.378", depth is 0.642", wide by 2.992" in length.
Car Aluminum Grooved Magnetic Jack Pad,Jack Pad Weld Frame Rail Adapterred wi...
2X Aluminum Grooved Magnetic Jack Pad Jacking Puck Pinch Weld Frame Rail Adapter
2× Blue Aluminum Slotted Magnetic Jack Pad Pinch Weld Frame Rail Adapter
2X Blue Aluminum Slotted Magnetic Jack Pad Pinch Weld Frame Rail Adapter