It is specially designed for GoPro 4/3+/3, suitable for water photography to provide superior optical performance. NOT for Gopro Hero 5. 

Package Included: 
1x Dome Port with waterproof housing case 
1x Float Handle Bar
1x Security Hand strap
1x Long Screw 

The question from our customer most below: 
1.There is a reflection of gopro camera in the image, how to solve this? 
Re: This dome is not real glass made, it is not like other expensive one. There may reflection of your gopro in the image if you shoot at anything with a bright light source (lights, sun, etc.) You have to consciously photograph with your back to the sun.

2. Feel a little hard to screw it on, is there any way? 
Re: Please press harder the housing case first, and then close the backplate. In this way, it will be easier to screw tightly. 

✔Warranty:Full 1 Year WARRANTY with Replacement Coverage and Refund Unconditionally & Immediately from Eshenma, If you are not 100% completely satisfied, simply contact us to request a refund or exchange!If you have any questions with the items, please feel free to contact us by email. Please remember that offer best solutions and do effective actions is our initial but final aim, you are very important for us.

• [PERFECT FOR GOPRO HERO 4 3+ 3:] The Dome Port specially designed for GOPRO HERO 4 / Hero 3+ / Hero 3, and does not require any special modifications. NOT FOR GOPRO HERO 5!
• [EXCELLENT ABOVE/BELOW WATER VIEW:] Moving the waterline away from the lens makes it possible to capture images both above and below the water simultaneously. Wide-angle lens to help you take immersive photos. It gives you very cool pictures, gives you a real world.
• [WELL MADE:] Made of high quality Acrylic Material. Size: 6 Inch; Weight: 620g; Max Underwater: 10M
• [WATERPROOF TEST GUARANTEE & KIND NOTE:] Factory Hydrostatic Water Pressure Test to make sure waterproof ability but for the first time use, we highly recommend to press harder the housing case and screw tightly and fully submerge into water without your Gopro to check the housing not broken, not leak.
• The Dome Port works with the Hero 3+ or Hero 4 housing case and does not require any special modifications or separate accessories, The camera is just as secure as always since the Dome Port slips right onto the housing, it does not alter the depth rating of the GoPro housing

[PERFECT FOR GOPRO HERO 4 3+ 3:] The Dome Port specially designed for GOPRO HERO 4 / Hero 3+ / Hero 3, and does not require any special modifications. NOT FOR GOPRO HERO 5!Eshenma