Material: pc+pp+gp; Main Color: Black1 Cell Size: 22 x 22mm/0.8" x 0.8"(L*W)Inner Dia: 18.3mm/0.7"

18650 cylindrical battery holder, fire retardant pc+pp+gp materials

Crack resistant edge with the slot, with the firm, It can accomodate various size

Battery installation hole diameter 18.3mm, 1-linked structure,Nickel plate vibration test can be conducted without attachment to any device.

Suitable for all types of battery assembly including do it option.

Please note, installation requires top and bottom piece to work.