High-concerned chemical: None - Our mini level ruler is manufactured with safety in mind, containing no high-concern chemicals. It is an eco-friendly choice for users concerned about the environment and personal health. : Electrical - Specifically designed for electrical DIY projects, this mini level ruler can be a crucial tool for ensuring in your work, whether you're installing sockets, switches, or aligning fixtures. Battery Included: No - This mini level ruler comes without a battery, ensuring a design that enhances portability and ease of use in various settings, from home DIY projects to professional construction sites. Proudly , this mini level ruler is crafted with and care, utilizing local materials and labor to support local economies while maintaining high quality standards. Measurement Range: 0 - 150 MM - Offering a measurement range of 0 to 150 mm, this mini level ruler is perfect for small-scale projects, providing the accuracy needed for meticulous work in tight spaces., Manufacturer: Akfldms