; the foregoing presented put up for retail sale as goods designed for a household terrarium or aquarium (provided for in subheading 6702.10.40) Free No change No change On or before 12/31/2020 . 1350. Polycrystalline Fibers Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.14.69 Polycrystalline fibers containing by weight over 70 percent of alumina and less than 30 percent of silica, the foregoing containing no alkaline oxides or boric oxide, presented in bulk (provided for in subheading 6806.10.00) 0.9% No change No change On or before 12/31/2020 . 1351. Catalytic converter needled blanket mats with a thickness of 10 mm or more and not over 3 percent of binder Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.14.70 Catalytic converter needled blanket mats of ceramic fibers, containing over 65 percent by weight of aluminum oxide and not over 3 percent of acrylic latex organic binder, of a basis weight greater than or equal to 1745 g/m 2 , measuring 10.0 mm or more in thickness; the foregoing presented in bulk, sheets or rolls, designed for use in motor vehicles of heading 8703 (provided for in subheading 6806.10.00). Free No change No change On or before 12/31/2020 . 1352. Catalytic converter blanket mats with a thickness between 5 mm and 9.9 mm and not over 3 percent of binder Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.14.71 Catalytic converter needled blanket mats of ceramic fibers, containing over 65 percent by weight of aluminum oxide and not over 3 percent by weight of acrylic latex organic binder, of a basis weight less than 1745 g/m 2 , measuring 5.0 mm or more but not over 9.9 mm in thickness