描述
1. Spring Loaded 4th Gel Clip / 2. Supplied with Oct. or Sq. Color Frame / 3. Gel Clip 1.8 mm Thick / 4. Rolled Lip on Focus Hole / 5. Aircraft Grade Rivets / 6. PG11 Strain Relief with UL, CSA, VDE Approval / 7. Innovative Yoke Locking Device / 8. Yoke Smooth Surface 32 mm Wide / 9. Barrel 1.5 mm Thic
