Skin packaging is a unique form of visual cards display packaging that tightly locks the product to a backing substrate (cardboard, corrugated board or air bubble sheet) by using a heat formed film that closely conforms to the contours of the product and firmly adheres to the backing board under vacuum suction, for the purpose of commercial display or industrial protection. Skin packaging are universally applied in the packaging areas such as hardware, stationary, toys, electronic components, printer accessories, auto/hydraulic/pneumatic parts, decorative items, arts & crafts, fragile ceramics and glass items, food stuff, etc. By skin packaging, the PCB stacks can be tightly packed between a lower air bubble sheet and upper clear plastic, offering the follow advantages: 1. Skin packaging can protect the products from dust and moisture for longer product life. 2. Crystal clear visual display can boost product appearance and value. Pack each roll in one carton case.