Carlisle Tire 511257 20x12 10 Turf Master (Rim Not Included) Center Hole Size 15 16" Requires 3 blades for 50" Requires 3 blades for 50" cut Echo CS 3600 Echo CS 360EVL Echo CS 3900 Echo CS 4000 Echo CS 3700 Echo CS 4200 Echo CS 4010 Echo CS 4500 Echo CS 4600 Echo CS 440EVL Echo CS 5000 Echo CS 510 Echo CS 520 Mastercraft 54 5675 Poulan 2700 Poulan 2750 Poulan 2775 Poulan 2800 Poulan 285 Poulan 2900 Poulan 295 Poulan 3000 Poulan 305 Poulan 3050 Echo CS 4610 Poulan 310 Poulan 3100 Poulan 315 Poulan 3300 Poulan 335 Poulan 336 Poulan 4620 Poulan 4620AVX Poulan PREDATOR Echo CS 4400 Echo CS 440 Echo CS 4100 Echo CS 400EVL Poulan 306 SA Product Highlights: Deep tread lugs in profile for optimized stability and traction