Leveled Reading Book Browser Cart 18 Small Open Tubs in an assortment of colors 2" locking casters. Tubs can be easily labeled (labels not included) Frame Measures 36 1/2"(91cm) H x 40 1/2"(103cm) W x 15 3/4"(40cm) D Small Open Tub Measures 6"(15cm) H x 6 1/2" (17cm) W x 15 3/4" (40cm) D 10 Year Frame Warranty. Lifetime Tub Warranty