Star Wars - Rogue One iPhone 6S LH Gauntlet - 17mm Wide straps (Velcro) will be ideal for strapping it to your arm
If you're not a fan of the laser tips on the gauntlet they can be printed separately. There isn't a designated fixed spot to where they sit on top as in the images show.
(Size of rare earth magnets needed for locking clasp is 2mm x 10mm x 10mm)
(This Gauntlet is to be worn on your left arm)
IF YOU'RE INTERESTED IN THIS DESIGNED STAR WARS ROGUE ONE GAUNTLET BUT IN ONE THAT FITS AN iPHONE 5 YOU CAN FIND THEM HERE -
https://www.cgtrader.com/3d-print-models/games-toys/toys/star-wars-rogue-one-iphone-right-arm-wrist-gauntlet
https://www.cgtrader.com/3d-print-models/games-toys/toys/star-wars-rogue-1-left-arm-wrist-gauntl
https://www.cgtrader.com/3d-print-models/games-toys/toys/2-for-1-star-wars-rogue-one-iphone5-rh-lh-arm-gauntlet
You Can Find This Model and Also More Then Over 150 Available Great Ready To 3D Print Models By Following - Pinshape@Gnarly3DKustoms
Thank You and Enjoy!!!