Sizing is primarily based on height

- Extra thick black spandex wing fabric

these wings are comfortable to wear for an extended time

to unlock hold down the end and rotate 90-180 degrees in any direction until it clicks and retracts

Compatible with the Biomechanical Spine

Version 2.2 Mechanical Wings industrial Sizing is primarily based onCybertech Wings Version 2. 2 All metal servo powered mechanical wings open 6. 5 feet wide. Takes 10AA rechargeable NiMH batteries. Highly durable construction with stylized "scalpel" wing blades and brushed aluminum finish. These wings close very compactly to hide behind your back. 6. 5 foot (1. 98 m) wingspan while open Closes compactly to 18 19 inches! (0. 47 m) Weight 15lbs (6. 8 kg) Used in new music video by Grimes "You'll Miss Me When I'm Not