Slime Safety Spair Flat Tire Repair System is designed to instantly seal the puncture and quickly re-inflates the tire. It features a 12 V built in compressor which activates by the push of a button and forces air into the sealant cartridge sending sealant as well as air into the tire. This repair system is easy, fast and safe to use. It seals punctures up to quarter inch and the tire pressure is sensor friendly. This system has a safety light for night use. The Safety Spair 70005 can be used as a stand-alone unit to inflate a low tire or sports balls without using the sealant. Please note: this item does not come with sports ball or any other adaptors so those would need to be purchased separately.