We R Memory Keepers Cinch Elastic Book Bands - 3 pack - This package of three Elastic Book Bands is part of the Cinch Collection from We R Memory Keepers (other items in the collection sold separately). These bands fit books that are 8 to 11 inches (20.3cm to 27.9cm) tall. In this package, you get one pink, one lilac and one blue book band. These bands will make keeping your place in books and notebooks a breeze! These bands measure approx. 1.3cm x 21cm.