The opening of each slotted jack pad is 0.378", depth is 0.642", wide by 2.992" in length.
Blue Universal Slotted Magnetic Jack Pad Pinch Weld Frame Rail Adapter
2pcs Universal Slotted Magnetic Jack Pad Pinch Weld Rail Adapter Blue
Car Universal Slotted Magnetic Jack Pad Pinch Weld Rail Adapter Blue
Car Universal Slotted Magnetic Jack Pad Pinch Weld Frame Rail Adapter Blue