14-2 hot1_01 hot1_02 hot1_03 hot1_04 hot1_05 hot1_06 hot1_07 hot1_08 100pcs18650 Battery Safety Anti Vibration Holder Cylindrical Bracket 22x22mm pc+pp+gp Meterials Lithium Batteries Support Stand Features 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. Specification Material: pc+pp+gp Model: 21700 Main Color: Black Size: 15 x 20mm Inner Dia: 23mm