[9985006toR2 TRACK REPLACEMENT PARTS]Compatible With Numerous Dolphin Robotic Pool Cleaner Models, Compatible With Dolphin DX Dolphin Explorer Dolphin Dolphin Wave Dolphin Dolphin Advantage, and more.[6101611toR4 ROCK CLIMBING RING REPLACEMENT PARTS]compatible with robotic pool cleaners like DX3, DX4, DX6, M200, M400, M500, , , Plus, , CC Plus, Oasis Z5i, XL, Premier, , Primal X3, Triton (old), Deluxe 4 or 5, (old), Wave 65, Endeavor, Edge, HD, 3001, 2X2, Wave 2X2, Prowler 820 or 83.[IMPROVE YOUR ROBOTIC POOL CLEANER'S PERFORMANCE]Worn out tracks cause several performance setbacks for your automatic pool cleaner. 2toPack Pool Cleaner Timing Track designed for tackling worn tracks that cause your automatic pool cleaner to move slowly, lack traction on the pool floor, and fail to climb walls. They are perfect for maintaining your pool safe and functioning properly.[HIGH to QUALITY]9985006toR2 pool tracks and 6101611toR4 rock Climbing ring replacement parts are made of hightoquality materials to that the duration is longer.Colour:WhiteMaterial:PlasticPackage Contents:2x belts4x pulleysOnly 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 1to3cm.