Laser engraving processing is the use of CNC technology as the basis, laser as the processing medium. Laser processing is characterized by no contact with the surface of the material, the surface will not be deformed, not affected by the material’s elasticity, pliability, etc., fine lines, cleaning-resistant, wear-resistant. Small volume and weight, easy to carry, take with you, made of fine lines. Double-sided three-dimensional plating color, anti-paint, anti-scratch. Made of high quality zinc alloy, corrosion and abrasion resistant, not easy to deform, no color change, durable. Measuring 2.72*1.54 inches, this custom house keychain double-sided laser engraving. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Customization: Logo printing available with multiple packaging and color options. Product Highlights: Portable, durable, practical for daily use.