; such housings waterproof at a depth up to 60 m, each incorporating buttons for operation of the camera, a silicon gasket designed for waterproofing, a flat and optically-coated glass lens, an aluminum heat sink and adjustable neoprene/hook and loop closures on its wrist straps (provided for in subheading 4202.99.90) Free No change No change On or before 12/31/2020 . 1136. Plastic cases for electronic games or accessories Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.12.53 Cases or containers of injection-molded acrylonitrile-butadiene-styrene (ABS), polypropylene (PP) or polycarbonate (PC) plastics, the foregoing specially shaped or fitted for, and with labeling, logo or other descriptive information on the exterior of the case or container, its zipper pull or its retail packaging indicating such cases are designed for use as holders for electronic games of subheading 9504 or accessories thereof (provided for in subheading 4202.99.90) Free No change No change On or before 12/31/2020 . 1137. Camera housings for waterproof operation not below 40m Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.12.54 Camera cases with outer surface of transparent molded polycarbonate plastics, designed for cameras of subheading 8525.80.40