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Feature

Package Include: 10pcs 3 hole spacer (total can holder 15 x 18650 battery), 5 x 5" Nickel Strip for battery welding.
One spacer size: 0.8" x 2.4" (20.2mm x 61mm), Materiel: Remarkable Flame Retardant ABS Plastic.
Radiating during high rate discharge. Extend battery life.
Every spacer has slots on edge for connection. Makes your battery pack Solid and Reliable!
Note: If nickel strip bending in transit, please use a small hammer to slightly hit the nickel strip for perfect fix.