Two installation options Freezer heat shields (Type A) are magnetic. Type B shields are selfadhesive. Please select the appropriate type based on your needs. Installation is simple and convenient, requiring no tools. Protection and performance Scientific protection: Universal refrigerator shields feature reserved gaps to prevent heat dissipation, while aluminum film reflects sunlight and blocks heat transfer, providing effective sun and heat protection. Edge binding: The heatinsulating reflective film has a thickened edge design to reduce cracking and extend the shield's lifespan. Material and functions: Refrigerator sunscreen film uses doublesided aluminum film, offering sun protection, heat insulation, and waterproofing for use in a variety of environments. Key attributes Function: Protects against sun and heat, insulates, and provides waterproofing for refrigerators. Compatibility: Universal refrigerator shields suitable for multiple environments. Material: Doublesided aluminum film. Performance: Reflects sunlight, minimizes heat transfer, and resists cracking with reinforced edges. Use scenarios In a sunny kitchen, install on the refrigerator to reduce heat buildup and keep contents cooler. For RVs or campers parked in direct sun, use Type A magnetic shields or Type B selfadhesive shields to protect food storage. In outdoor sheds, garages, or other exposed areas, apply the shields to block sunlight and improve thermal efficiency for refrigerators and freezers.