These 1 1/2 x 1 1/2 x 4 Reverse Tuck Mailer Cartons provide compact, reliable packaging for small parts, samples, and components that require efficient protection and organized presentation. Constructed from durable kraft folding cartons material, these mailers are designed for secure closure with tuck flaps on both the top and bottom, eliminating the need for tape in many applications. Their small footprint minimizes material waste while providing sufficient internal space for a wide range of lightweight items commonly used in manufacturing, electronics, and fulfillment operations. Engineered for high-volume users, these 1 1/2 x 1 1/2 x 4 reverse-tuck mailer cartons ship and store flat to save warehouse space and reduce freight costs. The reverse tuck design speeds up packing and assembly, making them an ideal choice for production lines, kitting operations, and sample shipment programs. Once set up, the carton maintains its shape well and helps protect contents from dust, handling, and minor shipping impacts when used as an inner pack or for small parcel shipments. Packaged 1,000 per case, these kraft folding cartons support efficient inventory management and consistent packaging standards across your operation.