Metallic Opal 8-1/2-x-11 Lightweight Multi-use Paper 250-pk - PaperPapers 120 GSM (81lb Text) Letter size Everyday Metallic Paper - Professionals, Designers, Crafters and DIY Projects Color name: Opal Size: 8.5-x-11-inches / Letter Size Finish: Shimmer Metallic paper with color on both sides Paper basis weight: 120 GSM (32/81lb Text) - this is NOT cardstock, it feels like a quality Letterhead paper Caliper (Avg): 6.0