Description:OOTDTY  brand new and high qualityFeature: Made of high-quality ABS material, fireproof, durable, and has a long service life.It is anti-fall and anti-explosion with good stability.Mainly used for assembling 21700 li-ion battery. Very felxible, it is easy to assemble any type battery packs. Very simple to operation.Using this holder, we can make different battery pack , such as 12 v, 24 v, 36v battery pack, which can be used as electric bike battery, electric tools battery, storage battery and electric car battery, etc. Specifications:Item Type: 21700 1x2 Battery Holder Bracket Material: plasticSize: middle pitch 23mm/0.9in, aperture 21.75mm/0.8inColor: BlackQuantity: 20PCSNote:No retail package.Transition: 1cm=10mm=0.39inchPlease allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package Includes:20 x 21700 1x2 Battery Holder Bracket (other accessories demo in the picture are not included!)