Features: Enhances your lawn maintenance with the 7 pack Knob Wing, suitable for multiple popular brands, ensuring a great fit for models such as the 19A30003 double rear bagger and 19A30013OEM 30 inch cover kit. Crafted from durable plastic, these knobs are designed to withstand outdoor conditions, providing reliable performances and longevity for your lawn mower or snowblower. Ideal for homeowners and professional landscapers seeking efficient and easy to use replacements parts for their garden machinery, ensuring smooth operation and maintenance. Suitable for use in various outdoor settings, whether you're tackling large lawns or managing snow covered driveways, these knobs ensure secure attachment and mess release adjustments. Upgrades your garden toolset with this versatile knob wing set, offering compatibility with multiple attachments and enhancing the functionality of your equipment for great gardening result. Specifications: Component:Plastic Bottom Diameter:2.1cm/0.83inches Nut Specification:5/16Inch Package Includes: 7Pcs/Set Lawn Mower Knob Wing note: Please allow 1-2cm error due to manual measurement. Please make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks!