Set of two, one per shoulder! Ideally this set of shoulder armor is meant to be worn with cotton padding underneathe and other steel plate armor. In fact, the top of each pauldron (sometimes refered to as spaulders) has a buckle to link it in with the rest of your armor setup. Wearing this set provides ample room to move around and the plates move well with the natural motion of the body. Has very thick genuine leather straps with buckles to secure them tightly around the arm and with other armor. Specifications Overall Length: 11.75 Inches Overall Width: 8 Inches Materials: Handforged Carbon Steel, Leather Links Steel Plate Thickness: ~1mm Number of Plates: 3 Per Side Size: Fits Adult Sizes Riveted Leather Straps Are Adjustable. Manufactured & sold by Nautical Collection.