Size 4×8″ 200PC. Outer Size 4×8″ 6×10″ 8.5×12″ 10.5×15″ 6×10″ 6×10″ 8.5×12″. 1 Waterproof. Waterproof ✔ ✔ ✔ ✔ ✔ ✔ ✔. Color Blue. Add to Favorite. Usable Size 4×7″ 6×9″ 8.5×11″ 10.5×16″ 6×9″ 6×9″ 8.5×11″.