Part number: 9983152-R2 is for a wide variety of for Maytronics Dolphin robotic pool. Compatibility: for Maytronics Dolphin Pool Cleaners: Active series, Cayman, Discovery, Echo, E10, Encore, Escape, Nautilus CC, Premium, Prowler series, Quantum, and Triton series models. Durability: The track swimming pool cleaner is made of high-quality materials and components, which are durable and can withstand the harsh environments frequently used in the swimming pool environment Cost down: Long term savings - parts replacement is inevitable, but not painful. Purchasing durable parts can even be more durable than industry expectations, thus saving a lot of money. Colour:White Material:rubber Package Contents: 2 * Pool Cleaner Replacement Track Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.