Size:100 * 80 * 8 mm, Pore size: 18.4 mmMaterial: ABS plastic Poly-carbonate ,is not easy to brittle fractureType 18650 belong to necessary support of high-end battery combination, can withstand high drop, high strength support, easy to heat dissipation, convenient combination, fixed specifications, and free combinationWith professional battery holder to replace the traditional general adhesive, which would brings convenient combination and more firm connection, as well as brings convenient maintenance of the battery.its the best choice of the battery combinationEvery two 18650 battery cells needs 2 Spacers (one up / one down)
