MTD Hi Lift Blades Cub Cadet Troy Bilt Deck, Set of 3 Fits: Cub cadet: GT1054, GT1554, GTX1054, LGT1054, LGTX1054, RZT54, RZT-L54, RZT-S54, SLTX1054, etc. Fits: MTD: GT2550, GT2550H, GT2754, GT5024, GT5427, GT954, SLT-5400, Z6600, ZTL8000, ZT-54, ZT-54 and ZT-L54 Fits: Troy built: TB2454, TB2654, GTX2654, Mustang 54 XP, big red and big red GT54 Specs: Center hole: 6 pt. star, length: 18 1/2", thickness: .160" and width: 3" Made by rotary corps