638PCS Gear and Wheels Axle Sets for Technic Pieces Parts Compatible with Mainstream Building Bricks Model, DIY Gears Assortment Pack-Gears, Pins, Axles, Gear Rack, Tires

Features

• "Building blocks model replacement pieces Parts in large varieties style, with strong practicability, the package comes as the picture displayed. It includes kinds of the gears, axles, gear rack, pins in different colors etc."
• "Application--The set has a variety of purposes, it can be applied to a substitute for assembly, connecting pieces, designing and building your project, decorating your model. Freedom to DIY a creative MOC model or create a new design, a great addition/ replacement to your bricks model."
• "Compatibility--Applied to the standard small particle parts, it can be compatible with the mainstream brands on the market, a great accessories set. Easily to be assembled and disassembled, simple to use."
• "Fun and useful for your technic project, a great gift choice for building block fans."
• "Material--Plastic, flexible and smooth to play with."