Folding Propeller Assembly for model boats and electric drives. Available in sizes 8x6, 9x6, 10x8, and 11x6 inches. Central shaft hole options: 3.0 mm, 3.17 mm, or 4.0 mm. Key benefits Compact foldable blades reduce drag when not under power and protect the blades during handling and storage. Durable construction with PC blades and an aluminum alloy fairing for stable, long lasting performance. Interchangeable cover allows use of different paddle specifications without replacing the entire hub assembly. Simple installation when matched to the correct shaft size, with a reliable locking shaft interface for secure mounting. Compatibility and important notes Available central hole sizes: 3.0 mm, 3.17 mm, and 4.0 mm. Select the option that matches your shaft. Designed for use with a prop root diameter for a 3 mm lock shaft. Shafts of other specifications cannot be installed and used normally. Example option notation: 8x6(3.0 mm) means an 8x6 inch propeller with a 3.0 mm central shaft hole for a 3 mm shaft. Dimensions and hub details For central shaft hole 3.0 mm or 3.17 mm: hub diameter 28 mm, hub height 27 mm. Propeller lock shaft diameter 3 mm. For central shaft hole 4.0 mm: hub diameter 38 mm, hub height 34 mm. Propeller lock shaft diameter 3 mm. Materials and package Blades: quality PC material for durability and resistance to impact. Fairing: aluminum alloy for strength and stable mounting. Package includes: 1 set propeller and aluminum alloy fairing. Other parts are not included. Typical applications RC electric boats and model racing boats requiring a compact, foldable propeller. DIY electric outboard or pod thruster projects where quick blade folding and low drag are desired. Replacement or upgrade of folding prop assemblies on small to medium scale model craft. Installation tips Confirm shaft diameter before ordering. Choose the matching central hole option to ensure correct fit. The multipurpose cover can be used to adapt the hub to different paddle specifications as needed. This folding propeller assembly is designed to offer reliable folding action, durable materials, and easy adaptation to common shaft sizes for model marine applications.