DescriptionThese car jack support blocks are made of high-quality rubber materials, which are sturdy and durable. They can prevent the chassis rails from being scratched, bent or broken. The jack pad adapters are designed to be strong enough to support your car. Use these jack pads to protect your frame rails when jacking up the car.Features-Color: Black.-Material: Rubber. -Size: About 7.00X7.00X3.00cm/ 2.75X2.75X1.18in. - High-quality rubber has super strength, are durable, wear-resistant, and can be used for a long time. -By using the base of the jack bracket, you can protect the jack point of the vehicle. -The slotted is stable, effectively preventing slipping during use. They can improve the safety of your work. -They are stable and suitable for any type of body and jack. -They can also prevent the chassis rails from being scratched, bent or damaged.