Baby Blocks Baby Shower Thank You Cards and Envelopes - pack of 24 These cute Baby Blocks and Quilt Thank You Note Cards display an illustration of a baby rattle and baby building blocks sitting at the edge of a baby's quilt. These adorable baby shower thank you cards come with white envelopes. Each thank you card measures 4.875in. x 3.375in. when folded. Sold in a boxed set of 24 baby shower thank you cards and white envelopes to match.