Battery holder type: CR2032 battery holder, Suitable battery model: 3V CR2032.
Output voltage: 3V, inner diameter: 20mm; material: durable plastic and metal.
CR2032 battery holder: high quality battery holder case, easy to insert the battery.
Button cell battery holder dimensions: L*W*H:24.5*22*8.5mm/0.96*0.86*0.33inch.
Package contents: 20 x button battery holders, black.