Please allow 12cm errors due to manual measurement. Product overview This item is designed to fit where accurate dimensions matter. The 12cm manual measurement tolerance reflects normal manufacturing and measuring variation and helps set realistic expectations for fit and installation. Why this matters to you Avoids surprises: Knowing the measurement tolerance helps you choose the correct size and reduces the chance of returns. Practical fit: The allowance accounts for small differences so the product still performs as intended when installed or used. Informed : Clear guidance on measurement makes it easier to confirm compatibility with existing parts or spaces. Key benefits and features Clear sizing guidance: Measurements include a 12cm manual tolerance to reflect real world conditions and ensure appropriate selection. Reliable fit: Designed for consistent performance within the stated tolerance, reducing installation adjustments. Durable construction: Built to meet functional requirements and everyday use conditions. Easy compatibility check: Use the provided dimensions and the tolerance note to verify fit with your equipment or space before ordering. Simple maintenance and use: Designed for straightforward installation and routine handling. How to use the measurement information Measure the installation area or existing part at three points and use the average dimension when comparing to the product size. Allow for the 12cm tolerance when planning mounting holes, clearances, or connections. If precise fit is critical, measure carefully and consider minor adjustments such as shims, spacers, or flexible seals. Practical use scenarios 1. Replacement parts: Confirm the product dimensions against the existing part, allowing 12cm tolerance for a proper replacement and minimal modification. 2. Home or workshop installation: Use the tolerance when planning mounting locations or clearances so the product fits without extensive rework. 3. Equipment or accessory fit: When adding an accessory to a device or structure, account for the measurement allowance to ensure secure and functional integration. What to check before ordering Compare your measured dimensions to the product dimensions, factoring in the 12cm manual tolerance. Verify any required clearances and mounting points with the tolerance in mind. Contact the seller through the platform messaging tools if you need additional dimensional details or clarification. This straightforward measurement guidance helps you make a confident choice and ensures the product meets your functional needs when installed or used.