Lens material: PMMA, with a light transmittance of 95%. After being coated with AR anti reflective film, the light transmittance can reach 98%. It is made of AS waterproof and anti fingerprint film, and AS with a hard film. The surface hardness is 5H, which can match the hardness of ordinary glass and is scratch resistant, achieving worry free photography with just one mirror in hand.
Waterproof ring material: amorphous high activity silicone
Material of the connecting shaft between the main body and the back cover: High hardness 304 stainless steel
Name:For insta360 X4 Fully Invisible Submarine Shell
Waterproof: 50M
Product weight:148g
Colour:Transparent
Material:PC
Size:155x80x85mm
Package Contents:
1 * Actiion Camera Diving Case
Logistics information
Our products are located in Hong Kong, China, and the logistics speed depends on your specific location. According to our experience, it usually takes about 15-20 days of transportation time
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How to choose the correct size:
Step 1 Please measure your foot length carefully.

Step 2 Please choose the correct size according to your foot length and chinese size.
For example, If your foot length is 255 mm , you should choose the size 8.
