[Material]: Plastic spools and covers, and nylon cord made of durable, flexible and durable nylon; centrifugal force and aerodynamics are used to reduce resistance and achieve fast cutting. [Coil Specifications]: 3M nylon copolymer resin spiral design and synthetic cutting line/cover , suitable for the real Worx WA0010 coil model. 1.65mm diameter portable power cord provides fast cutting and longer life. [Flexible and Durable]: The strength and stability of the yarn is impressive. Under normal conditions, its service life is 25% longer than that of similar wires. [Applicable models]: Lawn Mower Replacement Spool Fits Models WG150/WG151/WG151.5/WG152/WG153/WG154/WG155/WG155.5/WG156/WG157/WG160/WG160.1/WG160.2/WG163/WG165 /WG175 /WG180. Thread trimmer spool model: WA0010, coil cover model: WA0010. Product Description Spool*6 and Spool Cover*2 sets combination Spool Material: 70% Nylon + 30% Glass Fiber Yarn Material: Nylon (Red) Cable Length: 3.048m*1.65mm Coil cover material: 70% nylon + 30% fiberglass Size: 57*32 mm Can replace f-generation WORX WA6531 GT coil cover Can replace WORX WA0010 coil Package includes: Cutting coil x 6, Cutting cap x 2 Reminder: Please wear protective glasses and long underwear when using this product to avoid damage from cable spills. Unplug the power cord before replacing, installing or removing accessories. This cordless herbicide refill is only suitable for young grasses. Use other tools for strong weeds, like pruning blades. Note: Due to manual measurement, please allow 0-1cm difference. Thank you for understanding. The monitor calibration method is different. The color of the product shown in the photo may be slightly different from the actual product. Please refer to our size before ordering Delivery Quantity: 8 pieces