Terragrip traction chains are an alternative to common steel chains for lawn tractors used for snow removal, especially for driveway pavers, concrete and brick driveways, as well as concrete and asphalt surfaces. These rubber slats surround the tires ensuring secure installation and do not damage surfaces like steel like chains. This set is easy, no tools installation. The set is just like new and comes off a John Deere X300. I can text you pics if you are interested in the set of Terragrips.