uxcell&reg; 20 Pcs 18650 Lithium Cell Battery Holder Bracket for DIY Battery Pack Country of Manufacture: CHINA; Brand: Assisi Material: pc+pp+gp; Net Weight: 30g Package Content: 20 x Battery Holder Brackets; Model: 18650 Main Color: Black; Size: 22 x 22mm/0.8" x 0.8"(L*W) Inner Dia: 18.3mm/0.7"