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