4 Large Jewelry Display Risers Frosted White Acrylic. This is new 4 tier frosted white acrylic display. This adds sophistication and height to displays. Place boxed jewelry atop nested risers to highlight special designs or sales. Each platform measures approximately 4 3/8" x 5 7/8" (111.6 x 149 mm). The overall dimensions are 11" x 11 1/2" x 11 1/2" (279.4 x 292.1 x 292.1 mm).