Fraction-collector-plate style rack holds 1.5 to 2.0mL microtubes in a 5 x 16 array. Tubes sit in large wells with conical bottoms. Polypropylene rack is ideal for freezer storage. Autoclavable. Available in natural, blue, green, pink, yellow, orange, or assorted colors. Rack measures 8-7/8 x 2-5/8 x 1-1/8". Packs of 5.