This 360 degree swivel can fit telescoping extendable pole orother DIY use with universal For Gopro mountHelp to fix monopod on your helmetFit for 15-35mm extendable poleMaterial: Aluminum ExtendableProfessional Black Aluminum 360 Degree Swivel Rotating Helmet Self MountAdapter For Gopro Hero 3 3+ 4 5 Camera Color:Black ModelNO.:GP113D PACKAGE INCLUDE: 1 piece swivel wheel monut Color: Black Product description Due to its safety design, it will automatically drop from yourhelmet when you have incident. And there will be 0 damage to this device. Now as an amateur, you can enjoy dreamy, fancy shooting devicelike professional world top video makers. Your world is supposed to be more wonderful, just a little bitdifferent angle needed. Now, quit using table wheels on your head, treat your preciousaction and your more precious head with decent,professional and affordable safeequipment! Note: This item can not be used for skydiving. Helmet, camera and other accessories are not included. Forreference only. Brand No Brand SKU OT776EL031DI0NAFAMZ-37707 Model GP113D