Backpack conforms to the curvature of your back for comfortable use

Launches open to 6

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and wrist circumference at minimum

Deluxe Metal Biomechanical Spinal Armor V1.5 Size:Medium Backpack conforms to the curvatureFull metal biomechanical spinal armor with glowing vertebrae. Artistic cyberpunk style, durable costume accessory. Available with RGB light effects, dream color controller sequencer with remote control. Almost a hundred rolling light patterns, as well as speed control, brightness adjustment (great for photography), and solid color selection. Operated by RF remote control. Takes 4 AA batteries. Small on off switch located at the nape of the neck.