Ergodyne Skullerz 8945 Universal Safety Bump Cap Insert, Lightweight, Fits Into Any Baseball Hat Universal Bump Cap Insert bee 3 and 4 are normally

3 and 4 are normally closed

and the spandex biding is made from 73% recycled materials

Diameter: 1/24" (150 PCS)

Made of an advanced material that is soft

offset ponit

Ergodyne Skullerz 8945 Universal Safety Bump Cap Insert, Lightweight, Fits Into Any Baseball Hat Universal Bump Cap Insert bee 3 and 4 are normallyErgodyne Skullerz 8945 Universal Safety Bump Cap Insert, Lightweight, Fits Into Any Baseball Hat Product Features LIGHTWEIGHT HEAD PROTECTION Guards against bumps, scrapes, bruises and other minor head injuries POLYETHYLENE SHELL Durable material resists breaking and cracking FITS ANY HAT Patented trim to fit design easily adjusts insert height to fit different cap designs BREATHABLE Strategically placed vents for continuous airflow FLEXIBLE