Hinged Transparent Cover This outdoor electrical box waterproof with hinged clear cover provides an easy view of the inside electronic devices status at a glance. The internal size of the extension cord cover is 8.1"x4.2"x3.8". Heavy Duty Plastic The thickness of this outdoor extension cord cover for outside waterproof is 3.5mm, which is much more solid and firm compared to other outdoor plug covers. The latch of this outdoor power strip cord cover is made of 304 stainless steel. Fixed Bracket This outdoor extension cord cover with fixed bracket inside, so you can install electrical equipments easily. In addition, black silicone plugs can effectively prevent water from entering, making outlet cover extension cord work well in humid environment. Wall-mounted Design The waterproof extension cord cover is wall-mounted designed. Therefore, the enclosure can not only be placed flat on the ground but also hung on tree or wall. Wide Application This outdoor plug p