concave in shape and the opposite surface convex in shape, the foregoing not framed or fitted with other materials and not designed to manipulate light to create an optical effect (provided for in subheading 7006.00.40) Free No change No change On or before 12/31/2020 . 1359. Tempered glass cookware covers Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.14.78 Tempered glass covers for cooking ware, such covers produced by automatic machine (provided for in subheading 7010.20.20) 0.7% No change No change On or before 12/31/2020 . 1360. Transparent glass-ceramic cookware Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.14.79 Kitchenware of glass-ceramics, non-glazed and greater than 75 percent by volume crystalline (provided for in subheading 7013.10.10) Free No change No change On or before 12/31/2020 . 1361. Opaque glass-ceramic cookware Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.14.80 Opaque cooking ware of glass-ceramics (provided for in subheading 7013.10.50) Free No change No change On or before 12/31/2020 . 1362. Novelty designed drink coasters Subchapter II of chapter 99 is amended by inserting in numerical sequence the following new heading: 9902.14.81 Sets of coasters of glass, not pressed or toughened (specially tempered), each printed with a cross-sectional image of an object after formation of the glass which, when the coasters in any set are stacked, depict a three-dimensional image of such object