25x Extra Large Mailing Packing Double Wall Cardboard Boxes 30" x 20" Box (762mm 508mm 508mm) Ideal for Storage, Mailing, Shipping, Postage, Packaging Walled 25 Pack

18 x Polystyrene Sheets | SIZE: Each square-edged sheet measures 600mm (Length) x 400mm (Width) x 25mm (Height) | TYPE: EPS 70 | THERMAL CONDUCTIVITY: Low (0.038 - 0.030 W/mK) | BBA CERTIFIED for BS EN 13163:2012 | MADE in UK INSULATION BOARD (EPS70): High-performance polystyrene insulation sheets for walls, floors, sheds, and ceilings. Energy-efficient, lightweight, damp-proof, and odourless foam boards – BBA certified for reliable thermal insulation. PROTECTIVE PACKAGING: Durable EPS70 foam sheets provide shock-proof, impact-resistant cushioning for fragile items. Ideal for box lining, separating flat items like glass panels, or preventing movement during shipping and storage. Lightweight yet strong for reliable protection. ARTS & CRAFT USE: Safe, non-toxic polystyrene sheets ideal for model making, sculpting, dioramas, floral arrangements, school projects, and DIY hobbies. Easy to cut, carve, sand, glue, and paint – perfect for creative projects. ECO-FRIENDLY MATERIAL: EPS70 foam sheets contain no HCFs, CFCs, or HCFCs, with zero Global Warming Potential (GWP) and low Ozone Depletion Potential (ODP). Certified with a BRE Green Guide A+ rating – a sustainable choice for insulation and packaging.