Made in full grain Leather and USA Nylon to provide a lightweight pouch, not forgetting functionality and durability. -Leather bags were reinforced inside bottom with a layer of Nylon, and small nylon bags were reinforced outside with thick leather. FEATURES: -Specific inclination design on top to spill-less fasteners when workers lean. -Special square cut on the back of the pouch to secure it on your harness. -2 Leather cats paw/pull nail holder. -Spinnable safety leather strap for your speed square. 5 different sizes of bags are recommended for: 1.- Optional spot for tie wire supplier bag or tape measure holder. 2.- Main bag (16's double head nails). 3.-Outside small bag (8's double head nails). 4.-Another outside small bag (6's sinker nails). 5.- Small bag on the side for chamfer nails.