zinc battery, aa,aaa ,D size. PVC jacket with plastic cap&metal ... . Features:1) R6, AA, UM-3, 1.5V, carbon zinc battery Inner packing: 4pcs/shrink pack; 60pcs/box; Outer packing: 1200pcs ... /ctn2) R03, AAA, UM-4, 1.5V, carbon zinc battery Inner packing: 4pcs/shrink pack; 60pcs/box; Outer packing: 2160pcs ... ; Outer packing: 288pcs /ctn Mercury Free UM4 R03 AAA Dry cell Battery 1.5V PVC JACKET