• Comprehensive Replacement Kit: This set includes 3 spools (753-1156), 1 spool cap (791-153066B), and 1 spring (791-610317B) for MTD lawn mowers, providing a complete replacement solution. • Wide Compatibility: Compatible with various brands including MTD, Ryobi, Troy-Bilt, YARD-MAN, Bolens, YardMachines, Cub Cadet, Craftsman, Homelite, Toro, Lawn Boy, John Deere, and McCulloch string trimmers. • Durable Construction: The spring is made of metal for long-lasting performance, while the spool cap is constructed from sturdy plastic. • Pre-Wound Spool: The spool comes pre-wound with 18 feet (5.5 meters) of 2.4mm bright orange triangular spiral line for easy installation and immediate use. • Easy Replacement: Simple to install, allowing for quick and hassle-free maintenance of your grass trimmer. Specifications: Spring: • Part number: 791-610317B • Material: Metal • Product size: 30mm x 20mm • Replaces part numbers: 791-BQ01642, 791-610317 • Compatible with MTD, Ryobi, Troy-Bilt, YARD-MAN, Bolens, YardMachines, Cub Cadet, Craftsman, Homelite, Toro, Lawn Boy, John Deere, McCulloch • Fits models: CS202, CC4165, CC4105, ST2020, CC2020, CC2025, CC2000 Spool Cap: • Part number: 791-153066B • Material: Plastic • Product size: 43mm x 17mm • Replaces part numbers: 791-153066, 791-153066B, 791-147153, 153066 • Compatible with MTD models: 147153, 153066, 153068, 49M-3066L-034, 49M3066K006, 49M3066L034, 49M3066P053, 49M3066P500, 49M3066P553, 49M3066P953, 791-147153, 791-153066 • Compatible with Troy-Bilt string trimmer models: BR720, TB10CS, TB15CS, TB20CS, TB20DC, TB21EC, TB22EC, TB26TB, TB32EC, TB415CS, TB475SS, TB50, TB65SS, TB70SS, TB75SS, TB80EC, TB22, TB2EC • Compatible with Bolens BL150 41CD150G765 Gas String Trimmer Spool: • Part number: 753-1156 (RS753) • Line diameter: 2.4mm • Line color: Bright orange • Line type: Triangular spiral • Length: 18 ft (5.5 m) • Product size: 82mm x 28mm • Replaces part numbers: 791-180120, 753-1223, 753-1156, 753-06707, 49U1341L063 • Fits models: CS202, CC4165, ST2020, CC2020, CC2025, CC2000, CC4075, CC4025 • Dual line cartridge spool assembly fits: Craftsman, MTD, Troy-Bilt, Ace, Cub Cadet, Ryobi • Factory-wound for easy line replacement Package Included: • 3 x Spool • 1 x Spool Cap • 1 x Spring