Apopip 2 Pcs Track V2 Compatible with Polaris MAXX Suction Side Pool Cleaner R0916500Brand: Apopip Color: BLACK Features: 2 Pack Replacement Track R0916500 for Polaris MAXX Pool Cleaner. The tracks are designed to keep the cleaner a specific distance off of the bottom and provide grip for the cleaner to climb slopes and walls. Easy to use, simply pull the track off of the panel and push the new track back on. Make sure you get the correct number of tracks (For Polaris MAXX uses 2 tracks). Sincere Service: If you have any questions